Accessibility utility for captions you can access

Catch the word.
Keep the moment.

Caption Confidence marks the words you find easy to miss and lets you replay the current caption with one key—without sending your video or transcript anywhere.

Free core tools · Chrome and Chromium browsers · No account

Abstract cast-concrete caption instrument with two dark caption slots and a narrow seam of green moss
Fig. 01 Concrete certainty. Moss where attention belongs.
“Did she say sip or ship?” user pair
01 Your captions stay local 02 You choose the word pairs 03 R replays the current line

How it works / 90 seconds

Add a layer of attention.
Nothing more.

Caption Confidence improves a track you already have. It does not transcribe audio, scrape protected streams, or make medical claims.

  1. 01

    Bring captions

    Import a local VTT or SRT file, or read a caption track that an HTML5 video exposes.

  2. 02

    Name your pairs

    Add the exact words you tend to confuse. Matching words receive a high-contrast lichen mark.

  3. 03

    Replay once

    Press R from the page to return to the start of the current caption, with your chosen lead-in.

Honest signals

Emphasis you control.

The extension also labels source-authored uncertainty and unusually tight or overlapping cue timing. Timing flags describe the caption file—not the speaker or your hearing.

Version 1.0 / MV3

Set up in one minute.

The download is an unpacked Chrome extension package while store review is pending. Your browser will show its requested access before installation.

Download extension ZIP
  1. Unzip the download.
  2. Open chrome://extensions and enable Developer mode.
  3. Choose “Load unpacked” and select the unzipped folder.

Permission scope: the active page, local settings, and web pages with video. No browsing history is collected.

Optional supporter unlock

The listening tools stay free.

Pay once to support maintenance and unlock named appearance profiles plus moss and paper caption finishes. Import, emphasis, timing flags, replay, and settings are never paywalled.

  • One-time purchase, no subscription
  • Use your license on your own devices
  • Sociobot/Dodo is merchant of record

$12 one time

Support & unlock

Terms · Privacy · Refunds are handled by the merchant of record.

The free extension works without a license.

Clear boundaries

Built for accessible tracks.

It can
Read captions you import or a page exposes, mark exact word pairs, identify formatting strain, and replay a cue.

It cannot
Open DRM captions, generate a transcript, judge speech accuracy, or diagnose hearing loss.