Free tools
ASS online editor
Upload .txt / .srt / .vtt / .ass, or paste plain text. Edit cues on the right, then download ASS. No account required.
Need real timestamps from audio?
Free tools
ASS Online Editor – Edit ASS Subtitles Free
Free ASS online editor: upload .txt / .srt / .vtt / .ass or paste plain text, edit cues on the right, download ASS. No account. Need speech-accurate timing? Use SayToWords audio transcription.
What is an ASS online editor?
ASS is a timed subtitle format used by players and editors. This free browser tool lets you open common subtitle or text files, edit cue text and timing in a large workspace, then export clean ASS.
Upload accepts text, SRT, VTT, and ASS. Paste tab is for plain transcripts (estimated timing). For timestamps that match real speech, upload audio to SayToWords.
How to edit ASS online
- Upload a .txt / .srt / .vtt / .ass file, or open the Paste tab for plain text
- Cues appear in the right workspace — edit start, end, and text
- Use shift tools on the left if needed
- Download ASS — free, no signup
Estimated timing from plain text is a starting point. Sync cues to your video in the table, or generate subtitles from audio for speech-accurate timestamps.
Frequently Asked Questions
❓Can I open SRT, VTT, and ASS on the ASS editor?
❓Is this editor free?
❓Where do I paste plain text?
❓Will CapCut or YouTube accept the ASS file?
❓When should I use audio-to-subtitles instead?
Need subtitles from real audio?
Upload audio or video to SayToWords and get time-synced SRT, VTT, or TXT.