Observed arrival · 2026-09-12

CaptionLeaf Keeps Transcription in the Browser

captionleaf.com Observed source

Editorial interest 79/100 Selection signal · not a rating of the site

A free browser tool that turns English audio and video into editable TXT transcripts or SRT subtitle files.

Landing page captured for the 2026-09-12 issue.

Field notes

CaptionLeaf runs local-file transcription in the browser after downloading a speech model, then exposes an editor with TXT and timestamped SRT export. The tested path covers MP3, WAV PCM, and MP4 using H.264 video with AAC audio, with a 50 MB and five-minute limit. Public Instagram and Reels links use a separate beta importer, while private posts, Stories, carousels, and live video are excluded.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

○OpenPublic substance visible

✦PrettyNotable craft visible

●ProPolished or operationally mature

◎NicheUnusually specific use

ƒJavaScriptBrowser-side code central

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