Timing on the waveform
Drag a cue's edges on the waveform. The video follows every change.
Free Online Subtitle Editor & Translator
Edit, translate, and convert subtitles in SRT, VTT, ASS and more. No installation required - works directly in your browser with AI-powered translation to 100+ languages.
Inside the subtitle editor
Co-pilot reviews the file
It flags long lines, overlaps and typos, then fixes them in one click.
Translation side by side
Every cue keeps its source above its translation, in 100+ languages.
Reading speed on every cue
Each line shows its CPS. Green reads easily, red is too fast.
14 CPS
Hi everyone, and welcome back to the channel.
15 CPS
First, drop your file into the editor.
21 CPS · Reading speed too high
More subtitle tools
Each one opens straight in the browser and hands its result to the editor.
Subtitle editor FAQ
Get quick answers about editing, conversion, translation, and subtitle generation workflows.
Yes, Editsub is free to get started, and some features use credits. We provide credits in your account so you can begin using the app right away, and you can add more as needed.
We support a wide range of popular subtitle formats including SRT, VTT, ASS, SSA, and more. If you need support for a specific format that's not listed, please contact us.
Editsub provides an intuitive interface for manually adjusting subtitle timings. You can easily shift, stretch, or compress subtitle timings to match your video content. You can upload a video file to the editor to preview subtitles in real-time and adjust timing visually. The tool supports common video formats and allows frame-accurate timing adjustments.
While you can use basic features without an account, we recommend creating one to access advanced features like cloud storage and project saving.
Start with the file you have
Drop in an SRT or a video and fix what reads badly. Editing needs no sign-up; AI features use free credits.
Start Editing Now