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LocalJPG
Convert HEIC & WebP to JPG — entirely on your device
LocalJPG converts HEIC, WebP, PNG, AVIF and BMP to JPG directly in your browser using WebAssembly — no uploads, no account, no server ever sees your photos. - MozJPEG compression with EXIF preserved - Works offline (PWA) after first visit - Batch convert + download as ZIP - Free for individual files; ZIP is $0.50 TON or $5 card
The reason I built this: I kept needing to convert iPhone HEIC photos and every tool I found uploads your files to a server. That felt wrong for personal photos vacations, family, documents.
So I built a converter that runs entirely in WebAssembly inside your browser. libheif for HEIC, @jsquash/webp for WebP, MozJPEG for compression. Your photos never leave your device not even temporarily.
A few things I'm especially happy with:
EXIF data is preserved (GPS, camera model, timestamps all intact)
Works fully offline as a PWA after the first visit
Streaming ZIP batch 100+ files without blowing up RAM
One file is always free. ZIP archive costs $0.50 that's the whole business model, no subscription, no account.
PH exclusive🎁: use code PH2026 at checkout to get the ZIP free
Would love feedback on two things:
Does it work on your device? iOS Safari has been the trickiest
Are there formats you'd want added?
Happy to answer any questions about the WASM implementation.
About LocalJPG on Product Hunt
“Convert HEIC & WebP to JPG — entirely on your device”
LocalJPG was submitted on Product Hunt and earned 3 upvotes and 1 comments, placing #149 on the daily leaderboard. LocalJPG converts HEIC, WebP, PNG, AVIF and BMP to JPG directly in your browser using WebAssembly — no uploads, no account, no server ever sees your photos. - MozJPEG compression with EXIF preserved - Works offline (PWA) after first visit - Batch convert + download as ZIP - Free for individual files; ZIP is $0.50 TON or $5 card
On the analytics side, LocalJPG competes within Design Tools, Social Media and Photography — topics that collectively have 492k followers on Product Hunt. The dashboard above tracks how LocalJPG performed against the three products that launched closest to it on the same day.
Who hunted LocalJPG?
LocalJPG was hunted by Alex. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.
For a complete overview of LocalJPG including community comment highlights and product details, visit the product overview.
Alex
Hey PH! Alex here, maker of LocalJPG.
The reason I built this: I kept needing to convert iPhone HEIC photos and every tool I found uploads your files to a server. That felt wrong for personal photos vacations, family, documents.
So I built a converter that runs entirely in WebAssembly inside your browser. libheif for HEIC, @jsquash/webp for WebP, MozJPEG for compression. Your photos never leave your device not even temporarily.
A few things I'm especially happy with:
EXIF data is preserved (GPS, camera model, timestamps all intact)
Works fully offline as a PWA after the first visit
Streaming ZIP batch 100+ files without blowing up RAM
One file is always free. ZIP archive costs $0.50 that's the whole business model, no subscription, no account.
PH exclusive🎁: use code PH2026 at checkout to get the ZIP free
Would love feedback on two things:
Does it work on your device? iOS Safari has been the trickiest
Are there formats you'd want added?
Happy to answer any questions about the WASM implementation.