Free video and subtitle tools
Small tools for getting a clip ready to post. They run in your browser, so your video and your files stay on your device, and none of them needs an account or adds a watermark. The one exception is the caption generator, which sends the audio, not the video, for transcription.
Video tools
Safe zone checker
See which parts of a vertical video TikTok, Instagram Reels and YouTube Shorts cover with buttons and text.
Convert video to vertical
Crop a wide video to 9:16, 1:1 or 4:5 and choose which part of the frame to keep.
Trim video
Cut a video down to the part you want to post.
MOV to MP4
Turn an iPhone or Mac MOV file into an MP4 that plays everywhere.
Free caption generator
Transcribe a video and add animated word-by-word captions. The video stays on your device; only the audio is sent for transcription.
Subtitle tools
Subtitle time shift
Move every subtitle in an SRT or VTT file earlier or later, or resync a file that drifts.
SRT and VTT converter
Convert subtitle files from SRT to VTT, VTT to SRT, or YouTube SBV to either.
Subtitles to text
Turn an SRT, VTT or SBV file into a plain-text transcript, with or without times.
Script timer
Paste a script and see how long it takes to say, and whether it fits a Short, a Reel or a TikTok.
Burn subtitles into video
Draw an .srt or .vtt file into a video and export an MP4, with no transcription.