Your files stay on your device
Edit, shrink and convert video in your browser
142 free video tools that run on your own device. No upload, no sign-up, no watermark. AI subtitles, translation and dubbing when you need them.
Popular:Compress videoTrimVideo to GIFMOV to MP4Burn subtitles
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All 142 toolsMost used
Trim Video
Cut the start and end of a clip. Fast mode keeps the original quality.Merge Videos
Join several clips into one video, in the order you choose.Change Video Speed
Speed up or slow down a video from 0.25x to 4x, keeping the voice natural.Compress Video
Shrink a video's file size with simple quality presets.Compress to Size
Fit a video under 10, 16, 25 or 50 MB. The bitrate is worked out for you.Convert Video
Convert between MP4, WebM, MOV, MKV and AVI. Lossless remux when possible.Video to GIF
Make a sharp animated GIF from any part of a video.Remove Audio
Mute a video by removing its sound track, without re-encoding.Extract Audio
Save the sound of a video as MP3, M4A, WAV, OGG, FLAC or Opus.Change Video Volume
Make a quiet video louder, turn it down, or normalise loudness.Audio Converter
Convert between MP3, WAV, M4A, OGG, FLAC and Opus, from audio or video.Audio Cutter
Cut a song or recording with fades. Save as MP3 or an iPhone ringtone.Resize for Reels and Shorts
Make a video 9:16, 1:1, 4:5 or 16:9 with crop, blurred fill or colour bars.Burn Subtitles
Burn an SRT, VTT or ASS file into the picture with your own style.Screen Recorder
Record your screen, a window or a tab, with system sound and microphone.Auto SubtitlesPRO
AI writes subtitles from the speech, in Hindi, Hinglish and 90+ languages.Why Aback Video
Nothing is uploaded
Files are processed in this browser tab with FFmpeg WebAssembly. Your video never touches a server.
Fast when it can be
Stream copy for trims, mutes and format changes, so a 2 GB file is cut in seconds without re-encoding.
Free, no watermark
No account, no daily caps and no logo stamped on your work. Download as many times as you like.
Works offline
Once a tool has loaded it keeps working without a connection: on a plane, on a train, anywhere.
Aback Video Pro
AI subtitles in Hindi, Hinglish and 90+ languages
Auto subtitles, translation, AI dubbing and vocal removal. Only the audio track is sent, it is deleted within 24 hours, and subtitles are burned in on your device. Free minutes every day.
Auto SubtitlesPRO
AI writes subtitles from the speech, in Hindi, Hinglish and 90+ languages.Video TranslatorPRO
Subtitles in another language, timed to the speech.AI DubbingPRO
Your video spoken in another language by a natural AI voice.AI Vocal RemoverPRO
Split a song or video into vocals and instrumental, or remove the music.More than the usual video tools
All run on your deviceRemove a Section
Delete a part from the middle of a video and join the rest.Split Video
Split a video into equal parts or fixed-length clips, downloaded as a ZIP.Reverse Video
Play a video backwards, with the sound reversed or muted.Loop Video
Repeat a clip 2 to 20 times in one file, without re-encoding.Boomerang Maker
Turn a clip into a forward-and-back boomerang loop.Crop Video
Draw a frame on the video and keep only what is inside it.Fade In and Out
Add a fade from and to black or white, with the sound faded too.Side by Side Video
Put two to four videos next to each other, on top of each other or in a grid.Guides
All guides- Video Size Limits for WhatsApp, Discord, Email and Social Apps6 min read
- How to Compress a Video Without Losing Visible Quality4 min read
- How to Compress a Video for Discord4 min read
- The Best Aspect Ratio for Reels, Shorts and TikTok4 min read
- MP4 vs MOV vs WebM vs MKV4 min read
- H.264 vs H.265 vs VP9 vs AV14 min read
Questions
Is Aback Video really free?
Yes. Every tool that runs in your browser is free with no limit, no sign-up and no watermark. Only the AI tools (auto subtitles, translation, dubbing and vocal removal) use our server, and they come with free minutes every day plus an optional Pro plan for long videos.
Are my videos uploaded?
No. The free tools process your file on your own device with FFmpeg compiled to WebAssembly. The file is read from your disk into the browser tab and never sent anywhere. For the AI tools, only the audio track is extracted on your device and sent, and it is deleted within 24 hours.
How big can my video be?
It depends on your device's memory. Tools that copy streams (trim in Fast mode, remove audio, convert by remux) handle files of several gigabytes on a computer. Tools that re-encode every frame are happiest under about 1 GB on a computer and a few hundred megabytes on a phone. Each tool warns you when a file looks too large.
Why is it slower than a desktop app?
Browser code runs in a sandbox with one processing thread and no direct access to your graphics card's video encoder. Stream-copy jobs are just as fast, but full re-encodes take longer than a native app. In exchange you install nothing and your file stays private.
Does it work on my phone?
Yes, in Safari and Chrome on iPhone and Android. Phones have less memory, so very long or 4K videos are better handled on a computer. Screen recording is only available on desktop browsers.
Does it work offline?
Once a tool page and its engine have loaded, the free tools keep working without a connection. The AI tools need the internet.
Which formats are supported?
MP4, MOV, WebM, MKV, AVI, M4V, 3GP, FLV, WMV, MPEG, TS and more for video; MP3, WAV, M4A, AAC, OGG, Opus, FLAC and more for audio; GIF, PNG, JPG and WebP images; SRT, VTT and ASS subtitles. AV1 video cannot be decoded in the browser engine yet.