What is the Online Video Downloader?
MP3stack lets you save MP4 video or extract MP3 audio from top platforms in seconds. Paste a link or search keywords—simple, fast, and clean.
Public content only. Availability/quality depend on the original source; watermark removal is offered when available. If you specifically need clean videos, see No Watermark Downloader. For audio-only, try YouTube to MP3 or TikTok to MP3.
Power users: merge best video+audio or retag tracks after download with Merge Audio & Video and the Metadata Editor.
How to use
- Paste a link (YouTube/TikTok/IG/FB/Vimeo/SC) or type Artist – Title.
- Pick MP4 (video) or MP3 (audio), then press Search.
- Open Preview to confirm the right clip/version.
- Choose quality: MP3 64–320 kbps; MP4 144p–1080p+, up to 4K when available.
- Click Download.
Add “official / lyrics / live / 4K” to narrow results. Example: Artist – Title (official video).
What you can convert
- YouTube → MP3/MP4 music, podcasts, tutorials (MP3 · MP4).
- TikTok → MP3/MP4 viral sounds/clips (MP3 · No watermark tips).
- Instagram → MP3/MP4 Reels/public videos (Reels Downloader · IG to MP3).
- Facebook → MP3/MP4 public videos (FB Video Downloader · FB to MP3).
- Vimeo → MP3/MP4 shorts/docs (Vimeo MP4 Downloader).
- SoundCloud → MP3 tracks/playlists that allow it (SC to MP3).
Higher quality = larger files; pick a bitrate/resolution that fits your storage & data plan. Private/DRM/paywalled items are not supported.
Why choose MP3stack?
- All-in-One — YT, TikTok, IG, FB, Vimeo, SC from one place.
- Dual mode — paste links or search keywords.
- Preview first — confirm the right clip/version.
- Fast & lightweight — mobile-friendly UI.
- Quality picker — MP3 64–320 kbps; MP4 up to HD/4K.
- Privacy-aware — no app, no login.
Quick Start Guide
- Paste a link or enter Artist – Title.
- Pick the exact version (official/live/lyrics).
- Preview to confirm.
- Choose MP3 (128–320 kbps) or MP4 (144p–1080p+, up to 4K).
- Click the final Download.
On data: 360p–480p or 128–192 kbps. Big screen/hi-fi: 720p–1080p+ or 256–320 kbps.
Features & Benefits
- Smart search — typo-tolerant titles & artists.
- Clean metadata — title/artist/cover when available (see Metadata Editor).
- Trimming — cut intro/outro (when available).
- Merge A/V — pair best video + best audio (Mux / MP4/MKV).
- Subtitles — save captions as text when exposed (SRT/VTT/TXT).
- Cross-device — Android, iOS, Windows, macOS, TV.
Use Cases
- Offline viewing — flights, commutes, study sessions.
- Edits/remixes — grab clean audio for projects (see 320kbps MP3).
- Study & tutorials — save lectures/how-tos (see Lecture to MP3).
- Language practice — loop clear vocals/captions.
Device & Browser Guide
Android: Use Chrome; files in Files → Downloads.
iPhone / iPad: Use Safari; Files app → Downloads.
Windows / Mac: Chrome/Firefox recommended; Downloads folder.
Smart TV / Tablets: Preview works; some TV browsers limit saving.
Quality & Storage Planner
| Format | Quality | Avg Size (4 min) | Best Use |
|---|---|---|---|
| MP3 | 128 kbps | ~4 MB | Casual listening |
| MP3 | 192 kbps | ~6 MB | Better clarity |
| MP3 | 256–320 kbps | ~8–9 MB | Hi-fi / edits |
| MP4 | 360p | ~15–30 MB | Mobile viewing |
| MP4 | 720p | ~40–80 MB | Laptop / tablet |
| MP4 | 1080p | ~70–140 MB | TV / big screen |
| MP4 | 1440p/4K | varies | When the source supports it |
Popular searches
FAQ
Is it free?
Which sites are supported?
What formats & quality?
Can it remove watermarks?
Is it legal/safe?
Where do my files go?
Troubleshooting
- Download didn’t start: allow pop-ups; click the final Download.
- Slow/timeout: prefer Wi-Fi; choose 360p–480p or 128–192 kbps.
- Storage full: delete older files or choose smaller quality.
- Private/age-restricted: only public items are supported.
Copyright & compliance
All trademarks & logos belong to their owners. MP3stack does not permanently store files; items are generated on demand from public sources.
⚠ Attention:
By using this service you agree to our Terms of Service.
Use it only for content you own rights to or that is free-licensed.