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…
Video to TextConvert video to text online for free. Transcribe MP4, WebM, MOV, and audio t…
Instagram Video DownloaderDownload Instagram Reels and videos in MP4 format. Paste the link, click down…
Convert GIF to MP4 OnlineTurn an animated GIF into an MP4 a fraction of the size, which is the format …
Video to APNG Converter OnlinePick a clip range, frame rate, and width, then export it as an animated PNG w…
Video to WebP Converter OnlineTrim a clip range, set frame rate and output width, and export animated WebP.…
Video to AVIF Converter OnlineExport a clip as animated AVIF, the smallest of the modern animation formats.…
Merge Videos OnlineQueue MP4, WebM, or MOV clips, arrange the order, and join them end to end in…
Reverse Video OnlinePlay an MP4, WebM, or MOV clip backwards and export it. Both picture and audi…
Change Video Speed OnlineRetime a clip anywhere from 0.25x to 4x and export the result, whether you wa…
Add Freeze Frame to Video OnlineHold one frame in the middle of a clip. Pick the timestamp and how many secon…
Video ScreenshotScrub to a timestamp and save that exact frame as a PNG or JPG, which beats s…
Images to VideoOrder a stack of photos, set the frame rate, and render them into an MP4 slid…
GIF Frame InterpolationLift choppy footage to 30, 48, or 60 fps by generating the missing in-between…
Video to JXL Converter OnlineEncode video frames as JPEG XL instead of PNG or JPG, for photo quality still…
Apply Video Filters OnlinePush a clip through one of three looks: vivid color, flat grayscale, or full …
Video Stabilizer OnlineTake the jitter out of handheld footage. Motion is tracked across frames and …
Add Subtitles to Video OnlineBurn an SRT or VTT file permanently into the picture so the captions survive …
Add Audio to Video OnlineDrop in a silent clip and an audio track, set the volume, trim where the soun…
Video to PNGPull frames out of a video as lossless PNGs. Grab one exact moment, or export…
Video to JPGTake a still from a video without screen recording it. Export a single JPG or…
Describe Video with AIGet a text description of every second of your video — an AI model describes …

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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