Video Crop & Aspect
Crops the frame with a draggable window locked to 9:16, 1:1, 16:9, 4:5 or free, or pads it with bars to a target ratio, then re-encodes on your device.
Drop a video to crop
Drag a 9:16, 1:1, 16:9 or 4:5 frame over the picture, or pad it out to change the ratio without losing anything. The result is re-encoded on this device with WebCodecs.
Everything happens in this tab. The video is never uploaded.
Feed it from
Video Converter
Reads MP4, MOV, WebM and MKV and writes MP4 (H.264 + AAC) or WebM (VP9 + Opus) with quality and resolution settings. When only the wrapper changes — MOV to MP4, MKV to WebM — the streams are copied untouched.
Video Compressor
Re-encodes to a target file size or a quality preset, stepping the resolution down when the bitrate would starve it, and shows the projected size before it starts and the actual size after.
Video to GIF
Turns a clip into an animated GIF or WebP with frame rate, size and palette controls.
Video Rotate & Flip
Rotates a sideways phone recording by 90° steps, or rewrites just the rotation metadata.
Next
These accept what this tool produces, so the result can go straight in.
Burn Subtitles
Renders an SRT, VTT, ASS or SMI file permanently into the video frames with size, position, colour and outline control, drawn with the browser’s own fonts so Korean needs nothing extra.
Video Compressor
Re-encodes to a target file size or a quality preset, stepping the resolution down when the bitrate would starve it, and shows the projected size before it starts and the actual size after.
Video Converter
Reads MP4, MOV, WebM and MKV and writes MP4 (H.264 + AAC) or WebM (VP9 + Opus) with quality and resolution settings. When only the wrapper changes — MOV to MP4, MKV to WebM — the streams are copied untouched.
Video Trimmer
Cuts a clip between two timestamps, copying streams without re-encoding when the cut is on a keyframe.
Audio Converter
Converts between MP3, WAV, FLAC, AAC, OGG and Opus with bitrate and sample-rate settings.
Extract Audio from Video
Pulls the audio track out of a video as MP3, WAV, M4A or FLAC, or copies it without re-encoding.