WebPtoPNG
I built a WebP to PNG tool, everything runs in the browser
Details
- External ID
- 46379054
- Source
- HN
- Company
- —
- Product
- WebPtoPNG
- Website domain
- webptopng.cc
- Launched
- Dec. 24, 2025
- Cohort
- —
- Upvotes
- 22
- Upvotes percentile
- 0.6708015267175572
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:25 p.m.
- Updated at
- Sept. 7, 2026, 9:25 p.m.
Description
I built WebPtoPNG after getting frustrated with converters that throttle uploads or phone data; everything runs straight in the browser, and never asks for a signup.
Enrichment
- Theme
- document and PDF utility tools
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- webp to png converter in browser
- Manually corrected
- False
Could you build this?
Yes It is a purely client-side static web application utilizing standard HTML5 Canvas or browser Web APIs to decode WebP and encode PNG files locally.
Discussion
19 comments analyzed.
Competitors mentioned: ImageMagick, ffmpeg, GIMP, Krita, picxstudio.com
Concerns raised: Website behavior changes on each visit, harder to vet than installed applications, Browser canvas readback operations add random noise (Firefox privacy feature), Requires browser WebP support, Professional design appears less trustworthy than minimal HTML forms, Limited functionality compared to full-featured image editors
Feature requests: Support more image formats beyond WebP and PNG, Simplify interface, reduce text to match SPA tool UX, Open-source APIs or integrations for third-party tools, ImageEncoder API for native browser support
Competitors
Other products that read as similar to this one — 192 launches clear the similarity bar, closest 8 shown.
Attention rank: #58 of 193 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 28 days after the earliest competitor.
- Image Downloader - WebP, JPG, PNG · ph · 2026-09-15 · 1 upvotes · similarity 0.54
- Free JPG to WebP Converter Online · ph · 2026-09-30 · 1 upvotes · similarity 0.51
- webp.wiki · ph · 2026-09-29 · 1 upvotes · similarity 0.49
- Quick Image Tools · ph · 2026-09-11 · 2 upvotes · similarity 0.48
- ConvertPicto · ph · 2026-09-09 · 1 upvotes · similarity 0.47
- Browser Image Converter · ph · 2026-09-15 · 1 upvotes · similarity 0.46
- pdftoimg · ph · 2026-09-16 · 1 upvotes · similarity 0.45
- CompressMyPhotos · ph · 2026-09-25 · 1 upvotes · similarity 0.44
Other launches for this product
- No other launches for this product.
Same idea, different domain
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