Fix subtitles that drift further out of sync as a film goes on. Convert between 23.976, 24, 25 and 30 fps.
Your browser does the conversion. Open the network panel and watch: not one request is made while your file is read.
Stray tags, a byte order mark, timings that overlap. Where the file is fixed you are told what changed and how many times.
No sign-up, no email, no file count, no watermark and no paid tier waiting behind the third conversion.
Resync Subtitles runs entirely inside your browser, so your file is never uploaded anywhere.
Yes, and there is no catch waiting further down. No account, no email, no file count, no size cap, no watermark, and no paid tier that unlocks the one feature you actually wanted. Your own computer does the work, so there is no cost for us to pass on to you.
It finishes before you can read this answer. There is no upload step and no queue, because the conversion happens inside the page you already have open.
We never receive it. That distinction is worth being precise about, because most tools in this category upload your file to a server and then promise to delete it afterwards. Here there is no upload at all, so there is no copy to delete, nothing to leak, and nothing anyone could ask us to hand over.
Open your browser's developer tools, switch to the network panel, and convert a file. You will see the page load, and then nothing further. That is the entire claim, and you do not have to take our word for it.
Subtitle files in the wild are frequently a little malformed. A file may carry a byte order mark, leftover styling tags, cues that overlap each other, or timings that run before zero. Where something is corrected the log names it and counts it, so you always know what changed. A file that needed nothing says so.
SRT, WebVTT, SBV, ASS and SSA, LRC, and plain text carrying timestamps. The format is detected from the contents rather than the file extension, so a mislabelled file still works.
Once the page has loaded, yes. Disconnect from the internet and the tools keep working, because everything they need is already sitting in your browser.
Only what your browser can hold in memory, which for subtitle files is far past anything realistic. A feature length film's subtitles run to a few hundred kilobytes.
Yes. There is no licence to buy and no attribution required. The output is your file.
Every tool is free, with no account and no limit.