Break your videos beautifully.

moshpit is a video editor with a datamosher built in. Cut your clips together, then melt, bloom and glitch them by editing the compressed video itself. Ready for Reels, TikTok and Shorts, up to 4K.

Open in your browser Get the desktop app

Free and open source. Works in Chrome, Edge, Firefox and Safari, on computers and phones.

A tiny datamosher running right here on your graphics card: it measures how each 16 px block moves and rebuilds every frame from the last one, the way a decoder does. With KEY on, the keyframes at the cuts are dropped, so each new shot melts out of the old picture. The editor does the real thing, to the compressed video.

01How a mosh works

Video files mostly store movement.

A full picture, a keyframe, now and then. In between, only which blocks moved where. Take away the keyframe at a cut and the next shot's movement gets played on the last picture.

Eight frames around a cut, from a real export. I is a full picture; each P only says how blocks move.

Same clips, played back.

Drag across the picture: the clean cut on the left, moshed on the right.

cleanmoshed

02Effects

33 effects, each with a three-letter name.

Most glitch apps paint over the picture. moshpit's 13 mosh effects rewrite the compressed frames, the way datamoshing was always done; the 20 picture effects finish the look. Pick one.

KEYMelts

Keyframe Killer

One shot melts into the next: the new motion paints over the old picture. Start most moshes with this.

Removes I-frames (full pictures). The motion after a missing keyframe lands on the previous image, so one shot melts into the next. This is the base of almost every mosh: put it under the other effects.

what it does to the frames

Mosh effects13

Rewrite the compressed video itself.

Picture effects20

Work on the decoded picture, on the GPU.

Every effect and setting, in the docs · 26 presets and 32 transitions to start from

03The editor

And around it, a whole editor.

A multi-track timeline with the tools you'd expect from a desktop editor, so you can cut the video you want to break in the same place you break it.

The moshpit editor: media, preview, inspector and a timeline with mosh effects, titles, video and music

Media Import video, photos, GIFs and music, record your camera or screen, or generate footage to try things on (city lights, a sunset, a night drive).
Player Plays your cut straight away from the source files, and the rendered mosh as soon as it's ready.
Presets, Randomize, Variations 26 presets, a chaos dial and a grid of variations to breed from. Every result has a seed, so you can get it back.
Inspector Every setting comes with a line explaining what it does.
Mosh FX lanes Effects are bars on the timeline: drag, resize and stack them, or let them fire on the beat.
Transitions Melt, Bloom melt, Glitch cut and more on any cut, next to dissolves, wipes, circle and box crops, and a whip that goes the way the picture moves.
Export MP4, WebM, GIF, PNG frames or the raw broken AVI, up to 4K and 60 fps, with sizes made for Reels, TikTok and Shorts.

Timeline: Video and audio tracks, as many as you like. Magnetic main track, ripple trims, blade, slip and roll.
Clips: Speed 0.05–16×, speed ramps, reverse, freeze frames, keyframed position, zoom, rotation and opacity, with motion blur on the moves.
Colour: Colours kept true from your clip to the file, HDR phone footage brought to normal range, .cube LUTs, chroma key, adjustment layers and scopes.
Music: Zoom punches, shakes and speed ramps on the beat, effects that fire on every beat or bar or swell with the bass, and an edit cut to the song for you.
Tracking: Follow an object, a face or a flat surface through the shot and pin a title, a shape or a clip to it. One-click stabilize.
Cut-outs: Tap a subject and it's followed through the clip, so titles, shapes and other clips can sit behind it. Models run on your device.
Type and shapes: Gradient and per-word type, callouts, leader lines, tape, paper and stickers, with shadows and outlines on anything.
Collage: Polaroid cards, animated masks, pop-ins on the beat, split screens that swap and fake phone screens that zoom.
Steal this edit: Pick a video you like and your clips are cut the same way: its rhythm, frame rate, colours and frame.
Captions: Whisper, running on your device. Clean, karaoke, or melting with the mosh. Export .srt or .vtt.
Live: Play effects from MIDI knobs and pads, or over OSC in the desktop app, and record the take.
Output: Up to 4K (2160×3840 for vertical video) and 60 fps. 10 minutes in the browser, 30 in the desktop app. Vertical crops that follow the action, seamless loops.

04Gallery

Made with moshpit.

Each one comes with its recipe: open it and the same mosh goes onto your own footage. Share yours.

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Your footage never leaves your device.

Decoding and encoding: FFmpeg, as WebAssembly in this tab, or native in the desktop app
Effects: WebGL, on your graphics card
Videos uploaded: 0
Account needed: None. Installable, and works offline.

05Get it

Open it in a tab, or install it.

The desktop app runs a native FFmpeg on every core, so 4K and long videos are practical.

Your systemBrowserOpen moshpitChrome, Edge, Firefox or Safari. Install it from the address bar, or Share → Add to Home Screen on a phone.

Your systemWindows 10 / 11Installer (.exe or .msi)

Your systemmacOSApple Silicon or Intel (.dmg)

Your systemLinux.AppImage, .deb or .rpm

The desktop builds aren't code-signed yet: on macOS right-click the app and choose Open the first time; on Windows choose More info → Run anyway. More about the desktop app.

06Questions