Subtitle Toolbox is a small collection of free tools for people who make videos: fixing subtitles, converting files and the other small jobs that come up when you publish online.
Every tool runs entirely in your web browser. Your files are processed on your own device and are never uploaded to a server, so the tools work fast, work offline once loaded, and keep your work private.
The tools are free to use. The site may show advertising to cover its costs.
Who makes this
The site is built and maintained by an independent creator who makes videos and needed these tools for their own work. Each tool is tested by hand before it is published.
Found a problem?
If a tool gives a wrong result or you would like a new tool, please write through the Contact page.