Online Video Editor

Trim, compress, convert, crop, rotate, mute, and resize videos in your browser. 12 focused video tools — no upload, no watermark, no signup.

Trim, compress, convert, rotate, mute, crop, and resize videos directly in your browser. 12 focused tools, zero upload, zero watermark, zero signup.

Free foreverNo upload — files stay on your deviceNo watermarkWorks on MP4, WebM, MOV

Edit

Trim Video OnlineTrim and cut MP4, WebM, MOV videos online for free. Set start and end times, …
Compress Video OnlineCompress MP4, WebM, and MOV videos to a smaller file size. Choose a quality p…
Rotate Video OnlineRotate MP4, WebM, and MOV videos by 90, 180, or 270 degrees. Lossless — runs …
Mute Video OnlineRemove audio from MP4, WebM, and MOV videos. Lossless — keeps video quality i…
Resize Video OnlineResize videos to 1080p, 720p, 480p, or custom dimensions. Aspect-ratio lock a…
Crop Video OnlineCrop MP4, WebM, and MOV videos in your browser. Drag a crop box, pick an aspe…

Convert

Convert MP4 to MP3Extract audio from MP4, WebM, or MOV videos and download as MP3. Runs in your…
Convert MOV to MP4Convert MOV (QuickTime) files to MP4 directly in your browser. Lossless when …
Convert MP4 to WebMConvert MP4 video files to WebM in your browser. No upload, no watermark, no …

Generate

FPS ConverterChange video frame rate (FPS) online — convert between 24, 30, 60 fps and mor…
Video to GIF ConverterConvert MP4, WebM, and MOV videos to animated GIFs in your browser. Trim star…

More tools

Convert Animated WebP to MP4Convert animated WebP images to MP4 video in your browser. Adjust quality and…
Instagram Video DownloaderDownload Instagram Reels and videos in MP4 format. Paste the link, click down…
Convert GIF to MP4 OnlineConvert GIF to MP4 Online. Runs in your browser — no upload, no watermark.
Video to APNG Converter OnlineVideo to APNG Converter Online. Runs in your browser — no upload, no watermark.
Video to WebP Converter OnlineVideo to WebP Converter Online. Runs in your browser — no upload, no watermark.
Video to AVIF Converter OnlineVideo to AVIF Converter Online. Runs in your browser — no upload, no watermark.
Merge Videos OnlineMerge Videos Online. Runs in your browser — no upload, no watermark.
Reverse Video OnlineReverse Video Online. Runs in your browser — no upload, no watermark.
Change Video Speed OnlineChange Video Speed Online. Runs in your browser — no upload, no watermark.
Add Freeze Frame to Video OnlineAdd Freeze Frame to Video Online. Runs in your browser — no upload, no waterm…
Video ScreenshotVideo Screenshot. Runs in your browser — no upload, no watermark.
Images to VideoImages to Video. Runs in your browser — no upload, no watermark.
GIF Frame InterpolationGIF Frame Interpolation. Runs in your browser — no upload, no watermark.
Video to JXL Converter OnlineVideo to JXL Converter Online. Runs in your browser — no upload, no watermark.
Apply Video Filters OnlineApply Video Filters Online. Runs in your browser — no upload, no watermark.
Video Stabilizer OnlineVideo Stabilizer Online. Runs in your browser — no upload, no watermark.
Add Subtitles to Video OnlineAdd Subtitles to Video Online. Runs in your browser — no upload, no watermark.
Add Audio to Video OnlineAdd Audio to Video Online. Runs in your browser — no upload, no watermark.
Video to PNGVideo to PNG. Runs in your browser — no upload, no watermark.
Video to JPGVideo to JPG. Runs in your browser — no upload, no watermark.

Why use maratool?

FeaturemaratoolTypical SaaS editor
Free to use✓Free tier with limits
No file upload to servers✓ — runs in your browserFiles uploaded to cloud
No watermark on output✓Watermark on free tier
No file-size paywall✓ — up to 2 GBSize limit on free tier
Works offline after first load✓Requires internet connection

How it works

1
Pick a focused tool. Each tool does one job well — trim, compress, convert, and so on. Select the one that matches your task from the grid above.
2
Drop your video file. No account, no upload form — just drag your file into the dropzone. Your video stays on your device the entire time.
3
Processing happens in your browser. FFmpeg.wasm — a WebAssembly port of the industry-standard FFmpeg — runs entirely in your browser tab. There is no server. The first run downloads the ~25 MB engine once; after that it is cached.

How to use

  1. Pick the tool that matches your task from the grid below.
  2. Drop your video file into the dropzone on that tool's page.
  3. Adjust settings, click the action button, and download your result.

Frequently asked questions

Is this online video editor really free?

Yes, completely free. No signup, no subscription, no watermark on any output. Every tool runs in your browser using open-source libraries — there is no server processing your files.

Can I edit large videos like 4K or files bigger than 2 GB?

Large files work on desktop browsers — most tools handle up to 2 GB comfortably. 4K files are supported but require a modern CPU and at least 8 GB of RAM because FFmpeg.wasm processes the video in your browser memory. Mobile devices may struggle with files above 500 MB.

Does this video editor work on mobile?

Yes, the tools open and run on iOS and Android browsers. For small files (under 200 MB) the experience is smooth. Larger files are slower on mobile because processing happens on the device CPU — desktop is faster for anything above 500 MB.

Do you store or upload my videos?

No. Your video files never leave your device. All processing is done locally in your browser using FFmpeg.wasm, a WebAssembly build of FFmpeg. Nothing is uploaded to any server, logged, or stored remotely.

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