Colophon
Fix EPUB titles, covers and broken text online
Details
- External ID
- 1255032
- Source
- PH
- Company
- —
- Product
- Colophon
- Website domain
- producthunt.com
- Launched
- Sept. 20, 2026
- Cohort
- —
- Upvotes
- 4
- Upvotes percentile
- 0.9231879409878126
- Tags
- eBook Reader, User Experience, Bots
- Fetched at
- Sept. 21, 2026, 5:01 p.m.
- Updated at
- Sept. 21, 2026, 5:01 p.m.
Description
Colophon repairs ebook files in your browser. See what's inside an EPUB, fix wrong titles, authors and series, learn why a cover won't show on your Kindle, and clean up text a bad conversion broke. You approve every change. No account; files gone in an hour.
Enrichment
- Theme
- document and PDF utility tools
- Vertical
- Media & entertainment
- Function
- Workflow automation
- Audience
- Prosumer
- AI stance
- Not AI
- Project type
- Commercial product
- Normalized one-liner
- epub metadata and cover editor for ebook readers
- Manually corrected
- False
Could you build this?
Yes EPUBs are zip archives containing XHTML and XML metadata, which can be unpacked, edited, and repackaged entirely client-side using JavaScript libraries.
Competitors
Other products that read as similar to this one — 110 launches clear the similarity bar, closest 8 shown.
Attention rank: #6 of 111 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 258 days after the earliest competitor.
- Reflow · ph · 2026-09-16 · 2 upvotes · similarity 0.50
- Free EPUB Tools Online · ph · 2026-09-11 · 1 upvotes · similarity 0.50
- Readerbeam · ph · 2026-09-10 · 2 upvotes · similarity 0.48
- Robinpdf · ph · 2026-09-26 · 2 upvotes · similarity 0.44
- I Hate Corrupt Files · ph · 2026-09-24 · 1 upvotes · similarity 0.43
- I built an iOS app that turns EPUBs into audiobooks · hn · 2026-02-24 · 6 upvotes · similarity 0.40
- Clearly · ph · 2026-09-07 · 1 upvotes · similarity 0.40
- Text Compare · ph · 2026-09-11 · 2 upvotes · similarity 0.39
Other launches for this product
Same idea, different domain
Nobody's really built a workflow automation tool for Real estate yet.