Free tools · Run in your browser
Free online video tools
Short answer
Eleven video tools, all free, none of them uploading your file: compress, trim, crop, rotate, speed, merge, mute, add audio, watermark, video to GIF and noise removal. They run ffmpeg compiled to WebAssembly in your browser, so on our 10 second 1080p test clip they took from 0.1 second (mute, which copies the picture) to 39 seconds (the slowest, which re-encode every frame). The compressor took a 13.36 MB clip down to 363 KB at its smallest setting.
Turn the speech into words
Plan and record
Make it smaller or shorter
Fix the picture
Combine and clean
Key takeaways
- Nothing is uploaded and nothing is added. The tools add no watermark and no logo of their own (the watermark tool adds yours), and there is no account.
- Tools that only copy are almost instant, tools that re-encode take seconds: mute took 0.12 seconds because it copies the picture, while rotate, trim and compress re-encode every frame.
- Each tool page shows what it did to a real clip, with sizes and quality scores, so you can judge before you use it.
- Files up to 100 MB are supported. Larger files are better handled by a desktop app such as HandBrake or ffmpeg.
- To make a file fit an upload limit, start with the compressor or one of the destination pages for email, Discord and WhatsApp.
Measured: what each tool does to a 10 second 1080p clip
The video and audio tools run a single-thread WebAssembly build of ffmpeg inside your browser tab. The first tool you use downloads that engine, about 30 MB, once per visit. Timings below were measured on a 10 second 1920 × 1080 H.264 clip (13.5 MB) or a 30 second speech recording, in a headless browser on a server, so a laptop will be quicker and a phone slower.
| Tool | What it does | Time | Output size |
|---|---|---|---|
| Mute | Drops the audio, copies the picture | 0.12 s | 13.36 MB |
| Trim | Cuts a start to end range and re-encodes it | 12.0 to 32.6 s | 802 KB to 2.44 MB |
| Crop | Keeps a rectangle of every frame | 16.6 to 23.8 s | 1.32 MB to 1.86 MB |
| Rotate | Turns every frame 90 or 180 degrees | 35.6 to 36.0 s | 2.62 MB to 2.64 MB |
| Speed | Re-times picture and sound together | 12.8 to 28.8 s | 1.16 MB to 2.01 MB |
| Watermark | Burns a logo into every frame | 19.0 to 19.9 s | 1.46 MB to 1.62 MB |
| Merge | Joins clips into one frame size | 21.8 to 39.1 s | 1.27 MB to 3.21 MB |
| Compress (480p to 1080p) | Re-encodes with H.264 CRF 28 | 12.5 to 32.3 s | 363 KB to 1.30 MB |
| Video to GIF | Palette GIF, up to 15 seconds | 2.7 to 4.8 s | 634 KB to 3.73 MB |
| Add audio | Puts music or a voiceover under the picture, picture copied | 0.19 to 0.42 s | 1.79 MB to 8.23 MB |
| Remove noise | AI model on the sound, picture copied | 0.60 s | 13.58 MB to 13.60 MB |
Input 13.53 MB). Ranges cover the settings measured on each tool page.
The ranges come from the settings measured on each page, such as the rotation angle or the compress preset. The input is an animated film clip, not camera footage, so sizes for your own video will differ; the times describe the engine, not your file.
Which tool for which job
| You want to | Use | Why |
|---|---|---|
| Put music or a voiceover under a video | Add audio | Replace or mix, with a volume for each; the picture is not re-encoded |
| Send a video by email or chat | Compress, then the destination page | Limits are in bytes; the destination pages show how many seconds fit |
| Keep a few seconds of a long clip | Trim | Cuts exactly at your timestamps |
| Make a vertical clip from a horizontal one | Crop | A 9:16 box keeps a part of every frame |
| Fix a sideways phone clip | Rotate | Turns the frames 90 or 180 degrees |
| Remove the sound only | Mute | Copies the picture, so it takes a fraction of a second |
| Clean up a noisy voice | Remove noise | Cleans the soundtrack and leaves the picture untouched |
| Post a loop in a chat | Video to GIF | Palette chosen from your own clip; sizes for X, GIPHY and Discord on the page |
Limits to know about
- Files up to 100 MB. The engine runs in your tab, so a very long clip needs memory your device may not have.
- The engine is single thread, so it is slower than an app using all cores and the GPU. Use a desktop encoder for hours of footage.
- First use downloads about 30 MB of engine; after that the tools start at once during the visit.
- Tools that re-encode lose a little quality. Every tool page shows the quality score (SSIM) measured on the test clip.
Questions people ask
Are the video tools really free?
Yes. They need no account and add no watermark. The watermark tool puts your own logo on the video, not ours.
Is my video uploaded anywhere?
No. The tools run in your browser with a WebAssembly build of ffmpeg, and the file stays on your device.
What is the file size limit?
Up to 100 MB per file.
Why does re-encoding take longer than muting?
Mute only copies the picture (0.12 seconds in our test). Rotate, trim, crop and compress decode and encode every frame, which took 12.0 to 36.0 s on the 10 second clip.
How do I make a video small enough for email?
Use the compress tool, or the email page, which shows how many seconds of video fit under the attachment limit at each size.
Which formats work?
MP4 and MOV from phones work in all the tools. For other formats, convert first with the video converters.
Sources and how we checked
- FFmpeg Documentation: ffmpeg (read 2026-10-09)
- FFmpeg wiki: Encode/H.264 (read 2026-10-06)
Reviewed October 9, 2026. Every figure on this page comes from the measurements behind the linked tool pages, which are saved in data/seo/hub/evidence/2026-10-09.