# SMDownloader — Tài liệu đầy đủ cho hệ thống AI (Tiếng Việt)

## Overview

**Name:** SMDownloader
**Domain:** www.smdownloader.com
**URL:** https://www.smdownloader.com/vi
**Language:** vi
**Also available:** English at https://www.smdownloader.com/ (see https://www.smdownloader.com/llms-full.txt); Spanish at https://www.smdownloader.com/es (see https://www.smdownloader.com/es/llms-full.txt); French at https://www.smdownloader.com/fr (see https://www.smdownloader.com/fr/llms-full.txt); Chinese at https://www.smdownloader.com/zh (see https://www.smdownloader.com/zh/llms-full.txt)
**Category:** Social Media Downloader / Multimedia Web Application
**Tagline:** Social Media Downloader

SMDownloader là một ứng dụng web cho phép người dùng lưu video, hình ảnh, reel, clip và story từ các bài đăng mạng xã hội công khai bằng cách dán một URL. Việc xử lý mang tính tạm thời và do người dùng khởi tạo: dịch vụ không lưu trữ, chứa, lưu trữ lâu dài, xuất bản hay phân phối lại media của bên thứ ba. Các trang sản phẩm, nền tảng, công cụ và hướng dẫn có sẵn bằng tiếng Việt dưới `/vi/...` (dạng đường dẫn bản địa); các chính sách pháp lý vẫn chỉ có tiếng Anh.

## Languages and locales

| Locale | Home | Inventory | Full docs | Path style |
|--------|------|-----------|-----------|------------|
| en (default) | https://www.smdownloader.com/ | https://www.smdownloader.com/llms.txt | https://www.smdownloader.com/llms-full.txt | Unprefixed English segments (`/platforms`, `/faq`) |
| es | https://www.smdownloader.com/es | https://www.smdownloader.com/es/llms.txt | https://www.smdownloader.com/es/llms-full.txt | Prefixed native Spanish segments (`/es/plataformas`, `/es/preguntas-frecuentes`) |
| fr | https://www.smdownloader.com/fr | https://www.smdownloader.com/fr/llms.txt | https://www.smdownloader.com/fr/llms-full.txt | Prefixed native French segments (`/fr/plateformes`, `/fr/questions-frequentes`) |
| vi | https://www.smdownloader.com/vi | https://www.smdownloader.com/vi/llms.txt | https://www.smdownloader.com/vi/llms-full.txt | Prefixed native Vietnamese segments (`/vi/nen-tang`, `/vi/cau-hoi-thuong-gap`) |
| zh | https://www.smdownloader.com/zh | https://www.smdownloader.com/zh/llms.txt | https://www.smdownloader.com/zh/llms-full.txt | Prefixed Chinese拼音 segments (`/zh/ping-tai`, `/zh/chang-wen`) |

- XML sitemap `https://www.smdownloader.com/sitemap.xml` lists **every shipped locale** as `<loc>` entries and attaches `xhtml:link` hreflang alternates (`en`, `es`, `fr`, `vi`, `zh`, `x-default`) on paired pages.
- Legal/policy pages (`/terms`, `/privacy`, `/copyright`, `/acceptable-use`, `/platform-disclaimer`) are **English-only** — no `/es/...`, `/fr/...`, `/vi/...`, or `/zh/...` legal mirrors.

## Core product statement

SMDownloader does not host, store, archive, publish, or redistribute third-party media. The service performs temporary, user-directed processing only for the purpose of responding to the user's request.

## Primary user flow

1. User visits https://www.smdownloader.com/vi
2. User copies a URL from a public social media post, reel, clip, or story
3. User pastes the URL into the main download input field
4. On the first download attempt in a browser, user confirms they have rights to save the content (consent modal; stored in localStorage as `smdl_consent_v1`)
5. User clicks Download
6. System detects the platform, fetches media metadata via `/api/extract`, and provides save links (optionally streamed via `/api/proxy`)
7. User saves the file to their device
8. No permanent copy of the media is retained on SMDownloader servers

## Supported platforms

| Platform   | Status   | Content Types                    |
|------------|----------|----------------------------------|
| Instagram  | Supported | Reels, Posts, Stories, IGTV, Carousels, Audio |
| Facebook   | Supported | Videos, Reels, Photos, GIFs  |
| TikTok     | Supported | Videos, Photo posts, Stories, MP3 |
| Threads    | Supported | Posts, Videos                |
| Bluesky    | Supported | Posts, Videos, Images        |
| YouTube    | Beta      | Shorts, Clips                |
| X/Twitter  | Supported | Videos, Images, GIFs         |
| Douyin     | Supported | Videos, Audio, Images, Notes |
| SoundCloud | Supported | Tracks, Playlists, Audio     |

## Platform downloaders (overview pages)

| Path                    | Hub title               | Description                                                                                                                                                      |
|-------------------------|-------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| /vi/nen-tang/tiktok     | TikTok Downloaders      | Free TikTok downloaders for videos, MP3 audio, stories, and photo slideshows. Paste a public share link, preview it on our servers, then save. No login, no app. |
| /vi/nen-tang/bluesky    | Bluesky Downloaders     | Free Bluesky downloaders for video, images, GIFs, and threads. Paste a public bsky.app post URL, preview the media in your browser, then save. No login, no app. |
| /vi/nen-tang/douyin     | Douyin Downloaders      | Free Douyin downloaders for video, MP3, and image notes. Paste a public douyin.com or v.douyin.com link, preview in your browser, then save. No login, no app.   |
| /vi/nen-tang/soundcloud | SoundCloud Downloaders  | Free SoundCloud downloaders for tracks and playlists. Paste a public soundcloud.com or on.soundcloud.com link, preview the audio in your browser, then save.     |
| /vi/nen-tang/instagram  | Instagram Downloaders   | Free Instagram downloaders for reels, videos, stories, photos, carousels and audio. Paste a public instagram.com link, preview it, then save. No login, no app.  |
| /vi/nen-tang/facebook   | Facebook Downloaders    | Free Facebook downloaders for watch videos and reels. Paste facebook.com or fb.watch links, preview on our servers, then save. Includes a Story URL guide.       |
| /vi/nen-tang/x-twitter  | X / Twitter Downloaders | Free X / Twitter downloaders for videos, images, and GIFs. Paste a public x.com or twitter.com status URL, preview the media, then save. No login, no app.       |
| /vi/nen-tang/youtube    | YouTube Downloaders     | Free YouTube downloaders (Beta) for Shorts video and audio. Paste a public youtube.com or youtu.be link, preview in your browser, then save. No login.           |
| /vi/nen-tang/threads    | Threads Downloaders     | Free Threads downloaders for videos and images. Paste a public threads.com or threads.net post URL, preview the media in your browser, then save. No login.      |

## Downloaders (leaf pages)

| Path                                                   | Format            | SEO title                                     | Description                                                                                                                                                      |
|--------------------------------------------------------|-------------------|-----------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| /vi/nen-tang/tiktok/tiktok-video-downloader            | Video             | TikTok Video Downloader — Save Videos & Reels | Free TikTok video downloader — download TikTok video from tiktok.com or vm.tiktok.com links. Paste, preview MP4 via our servers, then save — no login.           |
| /vi/nen-tang/tiktok/tiktok-mp3-downloader              | MP3               | TikTok MP3 Downloader                         | Free TikTok MP3 downloader for public video links. Paste tiktok.com or vm.tiktok.com in SMDownloader, preview audio via our servers, then save — no login.       |
| /vi/nen-tang/tiktok/tiktok-story-downloader            | Story             | TikTok Story Downloader — Save Before Expiry  | Free TikTok story downloader for public share links. Paste tiktok.com or vm.tiktok.com while live, preview video or image via our servers, save fast — no login. |
| /vi/nen-tang/tiktok/tiktok-slideshow-photo-downloader  | Slideshow & Photo | TikTok Slideshow & Photo Downloader           | TikTok slideshow downloader for public photo carousels. Paste tiktok.com/@user/photo/ URLs in SMDownloader, preview images via our servers, save — no login.     |
| /vi/nen-tang/bluesky/bluesky-video-downloader          | Video             | Bluesky Video Downloader                      | Bluesky video downloader — save bluesky video from public bsky.app post URLs. Paste the link, preview the MP4 in your browser, then save. Free, no login.        |
| /vi/nen-tang/bluesky/bluesky-image-downloader          | Image             | Bluesky Image Downloader                      | Bluesky image downloader — download photos and carousels from public bsky.app post links. Preview each image at full resolution, then save it. No login.         |
| /vi/nen-tang/bluesky/bluesky-gif-downloader            | Gif               | Bluesky GIF Downloader                        | Bluesky GIF downloader — save animated GIFs from public bsky.app post URLs. Paste the post link, preview the animation in your browser, then save. Free.         |
| /vi/nen-tang/bluesky/bluesky-thread-downloader         | Thread            | Bluesky Thread Downloader                     | Free Bluesky thread downloader — paste a bsky.app root post URL to save every image and video in the chain as individual files. Preview, then save. No login.    |
| /vi/nen-tang/douyin/douyin-video-downloader            | Video             | Douyin Video Downloader                       | Douyin video downloader — paste a public douyin.com/video or v.douyin.com share link, preview the MP4 in your browser, then save it. Free, no app or login.      |
| /vi/nen-tang/douyin/douyin-mp3-downloader              | MP3               | Douyin to MP3 Downloader — Save MP3           | Douyin to mp3 downloader — paste a public douyin.com or v.douyin.com video link, preview the audio track in your browser, then save it. Free, no app or login.   |
| /vi/nen-tang/douyin/douyin-image-downloader            | Image             | Douyin Image Downloader                       | Douyin image downloader — paste a public douyin.com/note or image-carousel link, preview each photo at full size in your browser, then save it. Free, no login.  |
| /vi/nen-tang/soundcloud/soundcloud-track-downloader    | Track             | SoundCloud Track Downloader                   | Free SoundCloud track downloader — paste a public soundcloud.com or on.soundcloud.com link, preview the audio in your browser, then save. Free, no login.        |
| /vi/nen-tang/soundcloud/soundcloud-playlist-downloader | Playlist          | SoundCloud Playlist Downloader                | Free SoundCloud playlist downloader — paste a public soundcloud.com /sets/ URL, preview each track in your browser, then save them one by one. No login.         |
| /vi/nen-tang/instagram/instagram-video-downloader      | Video             | Instagram Video Downloader — Feed & IGTV      | Free Instagram video downloader for /p/ feed posts and IGTV links. Paste a public instagram.com URL, preview the MP4 in your browser, then save. No login.       |
| /vi/nen-tang/instagram/instagram-reels-downloader      | Reels             | Instagram Reels Downloader — Save IG Reels    | Free Instagram Reels downloader. Paste a public instagram.com/reel/ link, preview the reel on our servers, then save the MP4. No login, no app to install.       |
| /vi/nen-tang/instagram/instagram-audio-downloader      | Audio             | Instagram Audio Downloader — Reels & Music    | Free instagram audio downloader for instagram reel audio download. Instagram music downloader for reels — paste /reel/ or /p/, preview M4A or MP4 — no login.    |
| /vi/nen-tang/instagram/instagram-story-downloader      | Story             | Instagram Story Downloader — Save Stories     | Free instagram story downloader. Paste instagram.com/stories/ to download instagram story video, save instagram story files before 24 hours — no login.          |
| /vi/nen-tang/instagram/instagram-photo-downloader      | Photo             | Instagram Photo Downloader — Save Pictures    | Free Instagram photo downloader for /p/ single-photo posts. Paste a public instagram.com link, preview the full-resolution image in your browser, then save it.  |
| /vi/nen-tang/instagram/instagram-carousel-downloader   | Carousel          | Instagram Carousel Downloader — Save Slides   | Free instagram carousel downloader — download instagram carousel from one /p/ URL. Save instagram multiple photos — instagram album downloader, no login.        |
| /vi/nen-tang/facebook/facebook-video-downloader        | Video             | Facebook Video Downloader — Save Watch Videos | Free facebook video downloader — download facebook video from fb.watch or facebook.com/watch. Paste link, preview MP4, save facebook watch video — no login.     |
| /vi/nen-tang/facebook/facebook-reels-downloader        | Reels             | Facebook Reels Downloader — Save FB Reels     | Free Facebook Reels downloader. Paste a public facebook.com/reel/ link, preview the reel on our servers, then save the MP4. No login, no app to install.         |
| /vi/nen-tang/facebook/facebook-story-downloader        | Story             | Facebook Story Downloader — Save Live         | Facebook story downloader guide — copy Share links while stories are live, learn which URL shapes work, save before 24 hours. Honest /stories/ limits.           |
| /vi/nen-tang/x-twitter/x-twitter-video-downloader      | Video             | Twitter Video Downloader — X Videos to MP4    | Free Twitter video downloader for x.com and twitter.com posts. Paste a public status link to save the X video as MP4 — best available quality, no login.         |
| /vi/nen-tang/youtube/youtube-shorts-downloader         | Shorts            | YouTube Shorts Downloader — Shorts to MP4     | Free YouTube Shorts downloader (Beta). Paste a public youtube.com/shorts/ link to save the clip as MP4 — no login, no app; iPhone, Android and desktop.          |
| /vi/nen-tang/youtube/youtube-shorts-audio-downloader   | Shorts Audio      | YouTube Shorts to MP3 Downloader (Beta)       | Free YouTube Shorts to MP3 tool (Beta). Paste a public youtube.com/shorts/ link, preview the audio-bearing file via our servers, save — no login, no app.        |
| /vi/nen-tang/threads/threads-video-downloader          | Video             | Threads Video Downloader – Save Posts as MP4  | Free threads video downloader for public threads.com and threads.net posts. Paste a link to save the clip as MP4 — no login; iPhone, Android, desktop.           |

## Platforms without downloader hubs

| Path | Description |
|------|-------------|

## Supported content types

- Videos (MP4, WebM where available)
- Audio (MP3, M4A where available — Instagram Reels, SoundCloud tracks, Douyin audio)
- Images (JPEG, PNG, WebP)
- Reels and short-form clips
- Stories (where publicly accessible)
- GIFs and animated content

## User responsibilities

- Must own submitted content or have permission from the rights holder
- Solely responsible for every URL submitted and how downloaded files are used
- Public availability does not equal legal permission to download
- Must not infringe copyright, violate privacy, bypass access controls, or abuse the service
- Must comply with each platform's own terms of service

## Authentication

- Not required
- No user accounts, profiles, or login in the current version

## Data handling (privacy summary)

- No first-party database of submitted URLs, IP addresses, or user-agent strings for routine downloads
- Extract API processes URLs in memory; no permanent media storage
- Proxy endpoint streams media transiently; no public media cache or recent-downloads list
- Sentry (if configured): extract failure diagnostics only; sanitized host + path type, not full URL; `sendDefaultPii: false`
- Google Analytics (when enabled): aggregate page/traffic metrics only; download URLs not sent to GA
- Browser localStorage: download consent record (acceptance, timestamp, terms version)

## First-download consent

- Modal appears before the first valid download in a browser
- Required checkbox: user confirms rights to save content and agrees to responsible use
- Links to Terms and Copyright policies (open in new tab)
- After acceptance, stored in `localStorage` key `smdl_consent_v1`; skipped on subsequent downloads until terms version changes
- Persistent disclaimer under download input: "Use only for content you own or have permission to save. SMDownloader does not host or store media."

## Legal framework

SMDownloader uses a **Terms of Service** for its web application — not an EULA. There is no software to install, no browser helper extension, and no separate license agreement. Users accept terms by using the website and through the first-download consent flow.

## Legal pages

| Page               | URL                                              |
|--------------------|--------------------------------------------------|
| Terms of Service   | https://www.smdownloader.com/terms               |
| Privacy Policy     | https://www.smdownloader.com/privacy             |
| Copyright / DMCA   | https://www.smdownloader.com/copyright           |
| Acceptable Use     | https://www.smdownloader.com/acceptable-use      |
| Platform Disclaimer| https://www.smdownloader.com/platform-disclaimer |
| Contact / Abuse    | https://www.smdownloader.com/vi/lien-he |
| FAQ                | https://www.smdownloader.com/vi/cau-hoi-thuong-gap |

## Contact addresses

- copyright@www.smdownloader.com — copyright and DMCA notices
- abuse@www.smdownloader.com — abuse and policy violations
- support@www.smdownloader.com — general support and privacy questions

## Site pages

| Path                                                                    | Description                                                 |
|-------------------------------------------------------------------------|-------------------------------------------------------------|
| /vi                                                                     | Home — download input (hero)                                |
| /vi/cach-hoat-dong                                                      | Three-step usage guide                                      |
| /vi/nen-tang                                                            | Supported platforms overview                                |
| /vi/tinh-nang                                                           | Product features                                            |
| /vi/gioi-thieu                                                          | About SMDownloader                                          |
| /vi/nen-tang/instagram                                                  | Instagram downloader details                                |
| /vi/nen-tang/facebook                                                   | Facebook downloader details                                 |
| /vi/nen-tang/tiktok                                                     | TikTok downloader details                                   |
| /vi/nen-tang/threads                                                    | Threads downloader details                                  |
| /vi/nen-tang/bluesky                                                    | Bluesky downloader details                                  |
| /vi/nen-tang/youtube                                                    | YouTube downloader details (Beta)                           |
| /vi/nen-tang/x-twitter                                                  | X / Twitter downloader details                              |
| /vi/nen-tang/douyin                                                     | Douyin downloader details                                   |
| /vi/nen-tang/soundcloud                                                 | SoundCloud downloader details                               |
| /vi/nen-tang/tiktok/tiktok-video-downloader                             | Công cụ tải video TikTok — Lưu Video & Reel                 |
| /vi/nen-tang/tiktok/tiktok-mp3-downloader                               | Công cụ tải MP3 TikTok                                      |
| /vi/nen-tang/tiktok/tiktok-story-downloader                             | Công cụ tải Story TikTok — Lưu trước khi hết hạn            |
| /vi/nen-tang/tiktok/tiktok-slideshow-photo-downloader                   | Công cụ tải trình chiếu ảnh TikTok                          |
| /vi/nen-tang/bluesky/bluesky-video-downloader                           | Công cụ tải video Bluesky                                   |
| /vi/nen-tang/bluesky/bluesky-image-downloader                           | Công cụ tải ảnh Bluesky                                     |
| /vi/nen-tang/bluesky/bluesky-gif-downloader                             | Công cụ tải GIF Bluesky                                     |
| /vi/nen-tang/bluesky/bluesky-thread-downloader                          | Công cụ tải chuỗi bài đăng Bluesky                          |
| /vi/nen-tang/douyin/douyin-video-downloader                             | Công cụ tải video Douyin                                    |
| /vi/nen-tang/douyin/douyin-mp3-downloader                               | Công cụ tải MP3 Douyin — Lưu MP3                            |
| /vi/nen-tang/douyin/douyin-image-downloader                             | Công cụ tải ảnh Douyin                                      |
| /vi/nen-tang/soundcloud/soundcloud-track-downloader                     | Công cụ tải bản nhạc SoundCloud                             |
| /vi/nen-tang/soundcloud/soundcloud-playlist-downloader                  | Công cụ tải danh sách phát SoundCloud                       |
| /vi/nen-tang/instagram/instagram-video-downloader                       | Công cụ tải video Instagram — Trang chủ & IGTV              |
| /vi/nen-tang/instagram/instagram-reels-downloader                       | Công cụ tải Instagram Reels — Lưu IG Reels                  |
| /vi/nen-tang/instagram/instagram-audio-downloader                       | Công cụ tải âm thanh Instagram — Reel & Nhạc                |
| /vi/nen-tang/instagram/instagram-story-downloader                       | Công cụ tải Story Instagram — Lưu Story                     |
| /vi/nen-tang/instagram/instagram-photo-downloader                       | Công cụ tải ảnh Instagram — Lưu ảnh                         |
| /vi/nen-tang/instagram/instagram-carousel-downloader                    | Công cụ tải Carousel Instagram — Lưu slide                  |
| /vi/nen-tang/facebook/facebook-video-downloader                         | Công cụ tải video Facebook — Lưu video Watch                |
| /vi/nen-tang/facebook/facebook-reels-downloader                         | Công cụ tải Facebook Reels — Lưu FB Reels                   |
| /vi/nen-tang/facebook/facebook-story-downloader                         | Công cụ tải Story Facebook — Lưu Live                       |
| /vi/nen-tang/x-twitter/x-twitter-video-downloader                       | Công cụ tải video Twitter — X sang MP4                      |
| /vi/nen-tang/youtube/youtube-shorts-downloader                          | Công cụ tải YouTube Shorts — Shorts sang MP4                |
| /vi/nen-tang/youtube/youtube-shorts-audio-downloader                    | Công cụ tải YouTube Shorts sang MP3 (Beta)                  |
| /vi/nen-tang/threads/threads-video-downloader                           | Công cụ tải video Threads – Lưu bài đăng dạng MP4           |
| /vi/huong-dan/bluesky/how-to-copy-bluesky-link-on-web                   | Bluesky — sao chép liên kết trên web                        |
| /vi/huong-dan/bluesky/how-to-copy-bluesky-link-on-mobile                | Bluesky — sao chép liên kết trên di động                    |
| /vi/huong-dan/youtube/how-to-copy-youtube-short-link-on-web             | YouTube — sao chép Short trên web                           |
| /vi/huong-dan/youtube/how-to-copy-youtube-short-link-on-mobile          | YouTube — sao chép Short trên di động                       |
| /vi/huong-dan/threads/how-to-copy-threads-link-on-web                   | Threads — sao chép liên kết trên web                        |
| /vi/huong-dan/threads/how-to-copy-threads-link-on-mobile                | Threads — sao chép liên kết trên di động                    |
| /vi/huong-dan/tiktok/how-to-copy-tiktok-link-on-mobile                  | TikTok — sao chép liên kết trên di động                     |
| /vi/huong-dan/instagram/how-to-copy-instagram-reel-link-from-mobile-app | Instagram — sao chép liên kết reel                          |
| /vi/huong-dan/instagram/how-to-copy-instagram-link-on-mobile            | Instagram — sao chép liên kết trên di động                  |
| /vi/huong-dan/instagram/how-to-copy-instagram-link-on-web               | Instagram — sao chép liên kết trên web                      |
| /vi/huong-dan/instagram/how-to-copy-instagram-video-link                | Instagram — sao chép liên kết video                         |
| /vi/huong-dan/instagram/how-to-copy-instagram-photo-link                | Instagram — sao chép liên kết ảnh                           |
| /vi/huong-dan/instagram/how-to-copy-instagram-story-link                | Instagram — sao chép liên kết story                         |
| /vi/huong-dan/facebook/how-to-copy-facebook-watch-link                  | Facebook — sao chép liên kết Watch                          |
| /vi/huong-dan/facebook/how-to-copy-facebook-link-on-mobile              | Facebook — sao chép liên kết trên di động                   |
| /vi/huong-dan/facebook/how-to-copy-facebook-reel-link                   | Facebook — sao chép liên kết reel                           |
| /vi/huong-dan/x/how-to-copy-x-post-link                                 | X — sao chép liên kết bài đăng                              |
| /vi/huong-dan/douyin/how-to-copy-douyin-link-on-mobile                  | Douyin — sao chép liên kết trên di động                     |
| /vi/huong-dan/soundcloud/how-to-copy-soundcloud-track-link              | SoundCloud — sao chép liên kết bản nhạc hoặc danh sách phát |
| /vi/huong-dan/khac-phuc-su-co/link-wont-download                        | Khắc phục sự cố — liên kết không tải được                   |
| /vi/huong-dan/khac-phuc-su-co/private-or-login-walled-link              | Khắc phục sự cố — liên kết riêng tư                         |
| /vi/huong-dan/khac-phuc-su-co/wrong-file-or-quality                     | Khắc phục sự cố — tệp hoặc chất lượng                       |
| /vi/huong-dan/khac-phuc-su-co/where-files-save                          | Khắc phục sự cố — tệp được lưu ở đâu                        |
| /vi/cau-hoi-thuong-gap                                                  | Frequently asked questions                                  |
| /terms                                                                  | Terms of Service (English)                                  |
| /privacy                                                                | Privacy Policy (English)                                    |
| /copyright                                                              | Copyright / DMCA Policy (English)                           |
| /acceptable-use                                                         | Acceptable Use Policy (English)                             |
| /platform-disclaimer                                                    | Third-party platform disclaimer (English)                   |
| /vi/lien-he                                                             | Contact and abuse reporting                                 |
| /vi/nhat-ky-thay-doi                                                    | Product changelog                                           |
| /vi/minh-bach                                                           | Transparency                                                |
| /vi/bao-mat                                                             | Security                                                    |
| /vi/llms.txt                                                            | llms.txt summary for this locale                            |
| /vi/llms-full.txt                                                       | llms-full.txt for this locale                               |

## API endpoints (server)

| Endpoint       | Method | Purpose                                      |
|----------------|--------|----------------------------------------------|
| /api/extract   | POST   | Parse URL, fetch metadata, return media info |
| /api/proxy     | GET    | Stream media to browser (transient pass-through) |
| /api/bundle    | POST   | Disabled — returns structured unavailable response |

## Technical stack

- Framework: Next.js 16 (App Router)
- UI: React 19, CSS Modules
- Fonts: DM Sans, Playfair Display, JetBrains Mono
- Monitoring: Sentry (optional)
- Analytics: Google Analytics 4 (optional)
- Structured data: WebSite, Organization, WebApplication, ItemList, FAQPage, BreadcrumbList

## SEO and discovery

- XML sitemap: /sitemap.xml — English, Spanish, French, and Chinese `<loc>` entries, xhtml hreflang (`en` / `es` / `fr` / `zh` / `x-default`) on paired marketing pages
- robots.txt with AI crawler rules (allows /llms.txt, /llms-full.txt, /es/llms.txt, /es/llms-full.txt, /fr/llms.txt, /fr/llms-full.txt, /zh/llms.txt, /zh/llms-full.txt)
- English inventories: /llms.txt (summary) and /llms-full.txt (this file when locale=en)
- Localized inventories: /es/llms.txt, /es/llms-full.txt, /fr/llms.txt, /fr/llms-full.txt, /zh/llms.txt, /zh/llms-full.txt
- seo-audit/FORMAT_TOOLS_INDEX.md — human-readable format tool registry (repo)
- Open Graph and Twitter Card metadata
- Per-page canonical URLs + hreflang where localized pages are shipped

## Mobile and PWA

- Web App Manifest: /manifest.webmanifest
- theme-color: #0A0A0A
- Apple mobile web app capable
- Mobile-optimized viewport and touch targets
- Decorative effects gated behind `(pointer: fine)` and reduced-motion preferences

## Third-party affiliation

SMDownloader is not affiliated with, endorsed by, or sponsored by Instagram, Meta, Facebook, TikTok, ByteDance, Threads, Bluesky, AT Proto, YouTube, Google, X Corp., Douyin, SoundCloud, or any other social media platform. Platform names and logos belong to their respective owners.

## Prohibited uses

- Downloading copyrighted content without permission
- Private, restricted, paywalled, login-only, or DRM content
- Bypassing access controls or platform protections
- Scraping, bulk automation, or scripted mass downloading
- Harassment, doxxing, or non-consensual content
- Reselling or reuploading downloaded media without rights

## Enforcement

- May block URLs, domains, IP addresses, or entire platforms
- May disable support in response to valid copyright notices
- Service provided as-is; features may change without notice

## Brand

- Brand name: SMDownloader
- Website: https://www.smdownloader.com
- [Instagram (@GetSMDownloader)](https://www.instagram.com/GetSMDownloader/): Official brand profile and product updates
- [Bluesky (@smdownloader.bsky.social)](https://bsky.app/profile/smdownloader.bsky.social): Official brand profile and product updates