Video tools
Compress, trim, resize, convert and subtitle video locally — powered by in-browser FFmpeg, no upload required.
Change Video Speed
Speed up or slow down a video right in your browser, keeping audio in sync — pick a speed factor (0.25x–4x). Re-encodes locally with ffmpeg, nothing is uploaded, free.
Extract Audio from a Video
Pull the audio track out of any video as MP3 or WAV, right in your browser — pick a format and bitrate. Runs locally with ffmpeg, nothing is uploaded, free.
Extract Video Frames to a Contact Sheet
Sample frames from a video by interval, fps or scene change and tile them into one contact-sheet image. Free, in your browser with ffmpeg, nothing is uploaded.
GIF to MP4 / WebM
Convert an animated GIF into a much smaller MP4 or WebM video, right in your browser. Re-encodes locally with ffmpeg (H.264 / VP9), nothing is uploaded, free.
Loop a Video
Loop a video or GIF into one continuous file — repeat it N times or fill a target duration, free and in your browser with nothing uploaded.
Convert MOV to MP4
Free MOV to MP4 converter that runs in your browser. Lossless container remux (stream-copy) for H.264/HEVC clips, or re-encode ProRes. Nothing is uploaded.
SRT Subtitle Shifter
Shift SRT subtitle timestamps forward or backward to resync subtitles that run early or late — seconds or milliseconds. Free, private, runs in your browser.
SRT to VTT Subtitle Converter
Convert SRT to VTT and VTT to SRT free in your browser — format auto-detected, timestamps rewritten, WEBVTT header handled. No upload, no sign-up.
Subtitle Merger
Merge SRT or VTT subtitle files into one — combine split parts or overlay a second language track, with optional per-file time-shift. Free, in your browser.
Pad a Video to an Aspect Ratio
Letterbox or pillarbox a video to 9:16, 1:1, 16:9 or any preset ratio with colored bars or a blurred background — free, in your browser, nothing is uploaded.
Compress a Video
Shrink a video's file size right in your browser — pick a quality (CRF). Re-encodes locally with ffmpeg to H.264/AAC, nothing is uploaded, free.
Crop a Video
Crop a video to any rectangle in your browser — set width, height, and an optional x/y offset (centered by default). Re-encodes locally with ffmpeg, free.
Extract a Video Frame
Grab a single frame from any video as a PNG image, right in your browser — pick a timestamp in seconds. Runs locally with ffmpeg, nothing is uploaded, free.
Mute a Video
Remove the audio track from a video right in your browser — lossless, no re-encode. Nothing is uploaded, free, no sign-up.
Resize a Video
Scale a video to a target resolution right in your browser — set width and/or height, aspect ratio preserved. Re-encodes locally with ffmpeg, nothing is uploaded, free.
Rotate / Flip a Video
Rotate a video 90/180/270 degrees or flip it horizontally/vertically, right in your browser. Re-encodes locally with ffmpeg, nothing is uploaded, free.
Compress a Video to a Target File Size
Set an MB budget and it computes the H.264 bitrate from your clip's length to fit under it — for Discord, email or WhatsApp. Runs in your browser, nothing uploaded.
Add a Title or Lower Third to a Video
Add a styled title or lower-third caption to your video over a set time range — pick position, font size, color and a background bar. Free, in your browser.
Video to GIF
Turn any video into an animated GIF right in your browser. Pick a section, set fps and width — high-quality palette, runs locally, nothing is uploaded, free.
Convert Video to H.264 MP4
Force-transcode any video to universally-playable H.264 High-profile MP4 (yuv420p, faststart, AAC) in your browser. Make clips that won't play work everywhere.
Transcode a Video
Convert any video to MP4 or WebM right in your browser — pick a target format and quality. Re-encodes locally with ffmpeg, nothing is uploaded, free.
Trim a Video
Cut a clip out of any video right in your browser — set a start time and duration. Stream-copy (no re-encode), runs locally, nothing is uploaded, free.