Duetoday demo
See the Duetoday caption cleanup loop
The Duetoday workflow is useful when you need a working caption file quickly, but still want a transcript that can keep feeding notes, documentation, or study support later.
Accessibility Tools
Closed Caption Editor
Bring in existing caption files or generate them from an upload, clean the structure inside the browser, and export the exact caption format you need next.
Working accessibility tool
Edit and normalize caption files
Use upload when you need a first caption draft, or paste existing SRT/VTT when the caption file already exists.
Upload media or paste captions Use upload when you need a first caption draft, or paste existing SRT/VTT when the caption file already exists.
Choose a source 
How it works
Use the tool first, then keep the output alive.
Start from media or an existing caption file
Use the upload path when you need a caption draft, or paste an existing SRT/VTT track when the caption file already exists.
Normalize the caption structure
Duetoday restructures the cue layout for readability and lets you keep editing the result before export.
Export the cleaned track
Copy the text, download the current format, or convert between SRT and VTT after the cleanup pass is done.
Who is this for
Closed Caption Editor works best when the source already exists.
- Teams cleaning up rough auto-caption output before sending a video live.
- Educators and creators who need an editable caption track instead of a fixed export only.
- People moving between platforms that expect different caption formats.
Benefits of Closed Caption Editor
One place for generation and cleanup
If you start from uploaded media, you can get the first caption draft and do the first editing pass in the same browser flow.
Keep the exported file format flexible
When the destination platform changes, you do not need to start again. Convert between SRT and VTT from the same cue set.
Reduce the usual copy-paste mess
The editor keeps the caption text structured so the conversion or cleanup step is faster and less error-prone.
Comparison
Duetoday vs a format-only caption converter
A plain converter changes the file type. Duetoday also helps generate the initial cues and gives you an editable working area before export.
| Capability | Duetoday | Typical tool stack |
|---|---|---|
| Generate captions from uploaded media | Yes, you can create a caption draft before editing it. | Often expects you to already have a caption file. |
| Edit inside the browser | Paste, review, normalize, and export from the same page. | Frequently split across separate edit and convert tools. |
| Transcript reuse after cleanup | The transcript can stay available for Duetoday notes and follow-up workflows. | Most tools only care about the final caption file. |
| SRT/VTT switching | Convert the same cue set to the destination format you need. | May lock you into one export or a more manual copy-paste flow. |
Use cases
Where this free tool usually makes the most sense.
Cleaning lecture captions before posting recordings
Paste or generate the track, tighten the formatting, and export the version your learning platform accepts.
Fixing rough captions from a first transcription pass
Rewrap lines, clean the cue blocks, and keep the caption file easier to review before a final human pass.
Converting VTT to SRT for a client or internal workflow
Use one caption source, then switch the output format without opening another converter first.
Frequently asked questions
What people usually want to know before they use Closed Caption Editor.
Can I paste existing captions into this page?
Yes. The editor accepts existing SRT or VTT text so you can clean it up or convert it without needing a separate tool first.
Can I generate captions from media if I do not have a caption file yet?
Yes. Upload media, let Duetoday create the timed cues, and then keep editing the result from there.
Is this a full timeline editor?
No. This page is built for browser-first cleanup, normalization, and export, not for deep post-production timeline editing.
Will my manual edits stay in the export?
Yes. The output area is editable, so what you keep there is what gets copied or downloaded when you export the file.
Why would I use this instead of a subtitle desktop app?
If the main job is getting to a cleaner working caption file quickly, this is lighter and faster than opening a heavier editor for the first pass.
Related AI tools
Stay inside the same accessibility workflow cluster.
The quickest way to build momentum is to move sideways into the closest neighboring tool instead of restarting the workflow from scratch.
Duetoday proof
One transcript layer can unlock much more than one export.
The best part of Closed Caption Editor is not the first result alone. It is the ability to keep that result moving into the next useful step without rebuilding the workflow from zero.
100+
Universities already using the platform
Duetoday is already part of real student and educator workflows across lectures, PDFs, recordings, and revision.
1→many
One source can turn into multiple outputs
A single recording, transcript, or file can become notes, summaries, flashcards, quizzes, and follow-up study material.
No bot
Built for lower-friction capture
You can move from calls, lectures, uploads, and links into searchable output without stitching together a stack of disconnected tools.
Student stories
Transcript-first workflows get more useful when the next step is already built in.
Students and teams stick with Duetoday when the source can move from transcript into something more useful immediately.
I used to miss so much because I was trying to write notes and listen at the same time. Now I just record and I know every word is captured.
The flashcards it generates from my recordings are scarily accurate. It picks out exactly the kind of things that end up on exams.
Duetoday catches everything and then the AI tells me what my professor actually said about the topic. Not generic web answers. My real lecture.
Trusted by thousands of students and teachers 
Ready to boost
your productivity?
Use Closed Caption Editor as the first workflow step, then keep everything inside Duetoday as the rest of the platform takes over.