Turn VTT subtitles into ASS. It is converted in your browser, so the file never leaves your device.
Drop VTT files here
or choose from your computer paste with Ctrl V
from Photos or Files
Ready · other file types work too0 bytes uploaded, ever
Drop VTT (WebVTT) files onto the box above, or click it to choose them. ToAny reads the file's contents to detect the type, so a wrong extension does not matter.
Press Convert. There is nothing else to set. The work happens in this tab.
Save the ASS, or download everything as one ZIP if you converted several files.
The VTT to ASS converter is part of this page and runs inside your browser. Your subtitles are never sent to ToAny or to anyone else.
Nothing has to travel to a server and back, so the conversion starts the moment you press Convert, even on a slow connection.
No sign-up, no email address and no watermark. Add several files and download them together as a ZIP.
VTT is less widely accepted than SRT by desktop players and editors. ASS gives full control over how subtitles look. VTT is at home in captions on web pages and in HTML video players; ASS is the usual choice for anime and karaoke subtitles with fonts, colours and positioning.
The text is read as UTF-8 or UTF-16, whichever the file is. An older file in another code page is read using the charset it declares, or as Windows-1252 if it declares none, so accented letters in an unlabelled legacy file can come out wrong. A file that is not text, such as the picture-based subtitles of a DVD, is refused instead of being converted to nonsense. Of the styling, only italic, bold, underline and the position on screen (top, middle or bottom, left, centre or right) travel between formats; fonts, colours, outlines and effects do not. WebVTT comments, STYLE blocks and region definitions are skipped; the cues, their text and positions are kept. The file is written with a single Default style (Arial, white with a black outline) that the player or Aegisub can restyle, and times are rounded to hundredths of a second, the precision ASS has.
WebVTT is the caption format of HTML5 video. It looks like SRT with a WEBVTT header and a full stop in the timestamps, but also supports positioning, styling with CSS, chapters and metadata. Browsers display it natively.
Opens in Web browsers (the HTML track element), YouTube, Vimeo, VLC and streaming players
VTT converterASS adds styles to subtitles: fonts, colours, outlines, shadows, exact screen positions and animation effects. Fan-subbed anime and karaoke use it heavily. SSA is the earlier version, and the .ssa extension is read as the same format.
Opens in VLC, mpv, Aegisub and most fan-subtitling and media-server software; not browsers
ASS converter| VTTWebVTT subtitles | ASSASS/SSA subtitles | |
|---|---|---|
| Stands for | Web Video Text Tracks | Advanced SubStation Alpha |
| Type | Subtitles | Styled subtitles |
| Compression | None | None |
| Introduced | 2010, by the WHATWG and W3C | The 2000s, by the SubStation Alpha program and the Aegisub community |
| Opens in | Web browsers (the HTML track element), YouTube, Vimeo, VLC and streaming players | VLC, mpv, Aegisub and most fan-subtitling and media-server software; not browsers |
| Best for | Captions on web pages and in HTML video players | Anime and karaoke subtitles with fonts, colours and positioning |
| File extension | .vtt, .webvtt | .ass, .ssa |
No. The VTT to ASS conversion runs inside your browser, on your own phone or computer. The file is not sent to ToAny or to anyone else.
No further quality is lost: ASS stores the decoded audio exactly. The result is identical in content.
Yes. Add as many as you like, convert them together and download each result or all of them as one ZIP.
The steps are the same everywhere because ToAny runs in the web browser: open this page in a current version of Chrome, Edge, Safari or Firefox, add the VTT file, press Convert and save the ASS. There is nothing to install.
Yes, but a subtitle file is small. Files up to 50 MB are accepted, far more than any real subtitle file. Beyond that the limit is your device's memory, since nothing is uploaded; a computer copes with large files better than a phone.