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Post-production file converter

Convert SRT to Avid SubCap TXT

Prepare subtitles for Media Composer’s SubCap effect. Match your sequence frame rate, convert to Avid DS caption TXT, then import the caption data.

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up to 2 files · 100 KB each

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How to convert SRT to Avid TXT

Choose your Media Composer sequence frame rate and convert the SRT to Avid DS caption TXT. Add a SubCap effect covering the caption range, then use Import Caption Data to load the TXT. Check the sequence start timecode and the first and last captions before delivery; a mismatched rate or timecode offset can put captions in the wrong place.

  1. Add your SRT files

    Drag your .srt subtitle files onto the drop zone, within the batch allowance shown, or click to browse.

  2. Pick a frame rate

    Choose the frame rate of your sequence. SRT does not declare a frame rate, so check this setting rather than relying on the default.

  3. Convert SRT to Avid TXT

    Press Convert, then download your Avid caption TXT (or a ZIP for a batch).

Try SRT to Avid TXT with a sample

See the source file and its converted result before using your own files. Use “Try a sample” in the converter to preview the same input.

Sample input · SRT fileDownload episode-12.srtConverted result · Avid caption TXTDownload episode-12.avid.txt
See an excerpt of the sample input
1
00:00:01,000 --> 00:00:04,000
Welcome back to the cutting room.

2
00:00:04,200 --> 00:00:07,500
Today we're converting subtitles in seconds.

3
00:00:07,800 --> 00:00:11,400
Drop a whole batch and get one tidy ZIP back.

4
00:00:11,800 --> 00:00:15,000
  1. Load the sample SRT and set the frame rate to match your Media Composer sequence.
  2. Apply SubCap across the caption range, then choose Import Caption Data and select the converted TXT.
  3. Check the sequence start timecode and caption range if no captions overlap the effect.

The downloadable example uses the converter’s default 24 fps. A different sequence rate or start timecode needs matching settings and an alignment check.

Synthetic examples. Downloaded outputs are checked against the conversion engine; this does not certify an import in your editor version.

Back to the converter

SRT file and Avid caption TXT, explained

Media Composer cannot import SRT directly. The SubCap effect reads its own caption TXT format: timecode pairs between <begin subtitles> and <end subtitles> markers, with frames in the last field instead of milliseconds. Bringing web subtitles into an Avid timeline means matching that format and your sequence frame rate; this converter handles both, so captions land on exactly the right frames.

Prepare subtitles for Media Composer’s SubCap effect. Match your sequence frame rate, convert to Avid DS caption TXT, then import the caption data. It is free to start, encrypted in transit, and converts a whole batch into one ZIP — sign in when you need large, high-volume jobs.

SRT to Avid TXT FAQ

How do I import the converted TXT into Media Composer?

Through the SubCap effect: add a video track with filler covering the caption range and apply SubCap from the Effect Palette (Generator category), enter Effect Mode, expand Caption Files, and click Import Caption Data. The full walkthrough with troubleshooting is in the guide on importing SRT subtitles into Avid Media Composer.

Is this the SubCap caption format?

Yes. The output is the plain-text caption format SubCap imports (sometimes called Avid DS caption TXT): caption blocks between <begin subtitles> and <end subtitles> markers, each with an HH:MM:SS:FF start/end timecode pair.

What frame rates are supported?

You can choose 23.976, 24, 25, 29.97, or 30 fps to match your timeline, or leave it on auto-detect and CutConvert will work it out from your source.

Why does frame rate matter for Avid captions?

Avid caption TXT uses frame-accurate timecode, so the output has to match your timeline frame rate for captions to land on exactly the right frames. Pick the wrong rate and captions drift; pick the right one and they import cleanly.

Can I convert a batch of SRT files at once?

Yes. Drop several .srt files and download a single ZIP of Avid caption TXT files. Guests convert 5 files a month at up to 100 KB each; a free account has no monthly cap on files within the free size limit and batches up to 100 files, and paid plans start at $9/month for 100 conversions with 50 MB files.

Can I convert Avid caption TXT back to SRT?

Yes. Use the TXT to SRT converter at /txt/srt, which reads the timecode and caption text from an Avid caption export and writes a clean, accurately timed .srt.

Guides for this workflow

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Free to start

Convert everyday batches for free. Create an account when you need large, high-volume jobs.

Batch in, one ZIP out

Convert a batch within your allowance and download a single ZIP, or one file if that is all you need.

Made for editors

Whole timelines from Premiere, Final Cut and Avid with transitions, markers, titles, keyframes, levels, nests and bins; captions that keep their italics, colour, placement and speakers across SRT, VTT, ASS, TTML, iTT, SCC and STL, any of them in, any of them out; transcripts into Premiere with the words the engine timed. Frame rates and timecode handled the way post expects.

Private by design

Files are converted in your browser. Queued files can be saved locally to restore your job after checkout. Conversion metadata helps us diagnose errors; file contents are not uploaded.

Questions, answered

Where are my files processed?

In your browser. The converter runs on your own machine and the file never leaves it; the site only records that a conversion happened. CutConvert never sees, stores, sells or shares your media.

Is it free? Do I need an account?

About an hour of footage per file is free, on every converter: 100 KB of subtitles or captions, 500 KB of Word transcript, 2 MB of transcript JSON, 1 MB of Resolve project, 5 MB of Final Cut XML, with Premiere projects and Avid AAF a little under the hour. Guests get five conversions a month, a free account has no monthly cap within those sizes, and above that project-to-project transfers are $5 per file. Every other conversion is $3, including project files to captions, reports or cut lists, and captions or transcripts into an editor. Pro is $9 a month ($39 a year) for every file type up to 50 MB; Studio is $19 a month ($79 a year) for files up to 500 MB. Paid-file access lasts 24 hours.

What do I get when I convert multiple files?

Drop several files and you get back one ZIP archive containing every converted file. Convert a single file and you get that one file back, no ZIP. Tick extra formats under the output chips and the same ZIP carries every one of them, and a file counts as one conversion whatever it is written to.

Which formats are supported?

Timelines: Premiere .prproj, DaVinci Resolve .drp (as exported, or gzip- or Zstandard-wrapped), Avid AAF and Final Cut FCPXML in; FCP7 XML, FCPXML, Resolve .drp, CMX 3600 EDL and shot-list CSV out. A Premiere or Final Cut edit travels with its transitions, markers, titles, opacity and scale keyframes, clip volume, speed changes, nested sequences, bins, audio channel routing and each file's own frame rate, wherever the output has a place for them; an Avid AAF brings its transitions, markers, clip levels with their keyframes, muted tracks, nested stacks and each clip's own rate. Captions and transcripts, read and written: SRT, WebVTT, SBV, ASS, TTML, DFXP, iTT, SCC, MCC (a second 608 channel comes out as its own file), EBU-STL, Avid caption TXT, CapCut drafts of any size, timed CSV, Word, plain text, Whisper, WhisperX, AssemblyAI, Deepgram, Rev.ai and CapCut JSON, TwitchDownloader chat logs as a chat replay, Premiere transcript JSON and .prtranscript, Rev, Otter and Word-style transcripts, with italics, colour, placement and speakers kept where the output can hold them and measured word timing into Premiere. EDLs become event CSV reports. The capability table lists what every pair keeps.

Can I pick a frame rate?

Yes. For EDL and Avid caption output you can choose 23.976, 24, 25, 29.97, or 30 fps, or let CutConvert auto-detect it from your source.