Video Watermark
Overlays a logo image or a line of text at one of nine anchors with margin, size, opacity and an optional time window.
Drop the video you want a watermark on
A logo image (PNG, JPEG or WebP) or a line of text, laid over one of nine positions with a margin, an opacity and an optional time window.
Everything happens in this tab. The video is never uploaded.
Feed it from
Watermark
Stamps text or a logo across images with position, opacity, tiling and batch application.
Video Editor
Assembles clips into a YouTube or Shorts upload in the browser: trim, order, transitions, a music bed and subtitles. Same-batch AI clips with hard cuts export losslessly without re-encoding.
Video Trimmer
Cuts a clip between two timestamps, copying streams without re-encoding when the cut is on a keyframe.
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.
Next
These accept what this tool produces, so the result can go straight in.
Watermark
Stamps text or a logo across images with position, opacity, tiling and batch application.
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 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.
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.