Why 200KB?
A 200KB limit is more forgiving — common for visa photos, profile pictures, and form uploads that want better quality than a tiny thumbnail. Even so, a multi-megabyte iPhone HEIC has to come down 10–30×, and a quality slider can’t hit 200KB precisely. Enter 200, get a JPEG at or under 200KB.
How it works
- Your HEIC is decoded in your browser by a WebAssembly module — no server round-trip.
- The encoder searches JPEG quality levels to find the highest quality that fits under 200KB.
- If 200KB can’t be reached at the quality floor, the image is resized with a Lanczos filter until it fits.
- You get a JPEG to download, with a before/after preview.
Privacy
Visa photos and ID scans are sensitive. These files never leave your device — all decoding and compression happens locally in your browser, with no uploads, no cloud storage, no analytics. When you close the tab, the data is gone.
Frequently asked questions
Can it compress HEIC to exactly 200KB?
Yes. It searches JPEG quality levels to land at or just under 200KB, resizing only if 200KB can't be reached at the quality floor — so you always get 200KB or less.
Is my photo uploaded to a server?
No. Everything runs in your browser via WebAssembly. Your HEIC never leaves your device, and nothing is stored — close the tab and it's gone.
Will 200KB keep good quality?
Usually yes — 200KB is a generous target, so the result often stays at or near full resolution with high quality.
How is this different from a quality slider?
A slider makes you guess and re-check. You enter 200KB and it hits that target directly.
Does it work on Android or only iPhone?
Any modern browser on any device. HEIC is most common on iPhone, but the file can come from anywhere.
Is there a file size limit?
No server quota — it runs on your machine, so the only limit is your device's memory.
Is it free?
Yes — completely free, no signup, no watermark, no upload.