A 30KB PNG is a very tight lossless target — enough for a small icon, avatar, or simple graphic, typically around 140–160 pixels on the long edge for a photograph. This tool hits it exactly: type 30, and you get a lossless PNG at or under 30KB, with no upload and no guesswork.
Like other small PNG targets, 30KB suits synthetic graphics far better than photographs — flat-color icons and badges compress efficiently and stay crisp. If your image is a photo and the destination accepts JPEG, a 30KB JPEG keeps more usable detail.
Who needs a 30KB PNG
- Strict systems with a 30KB PNG cap. Niche portals and embedded systems that accept only PNG and impose a hard size limit.
- Small lossless icons and avatars. Tiny UI assets that must be pixel-perfect and small.
- Compact graphics and badges. Logos and flat-color graphics where JPEG would blur edges.
How to compress HEIC to 30KB PNG, step by step
- Open the compressor on this page. The engine loads once, in your browser.
- Drop your HEIC image into the box, or click to select it. A preview appears once it’s decoded.
- Set the target to 30KB. It is preset; type any number for a custom target.
- Click Compress. The tool reduces dimensions until the lossless PNG fits under 30KB.
- Compare before and after, then download the
.pngresult.
How PNG compression to a target size works
PNG is lossless by design, with no quality dial. To hit a size target, the tool reduces the image’s dimensions rather than its quality. It decodes the HEIC to pixels, estimates the target size from the dimensions, resizes with a Lanczos filter — the gold standard for downscaling — and encodes losslessly, looping until the PNG lands at or under 30KB. The result is a lossless PNG: exact pixels, no artifacts, at the small resolution that fits.
What to expect from a 30KB PNG
- Very small resolution. A photo at 30KB PNG is typically ~140–160px on the long edge.
- Graphics and icons work best. Flat-color synthetic content compresses efficiently and stays crisp; photographs run out of pixels.
- No quality loss. Whatever the resolution, the encode is lossless.
For a photograph at 30KB, a 30KB JPEG is usually the more usable result.
Privacy: nothing leaves your device
Your image never leaves your device. Decoding and compression happen locally in your browser via a WebAssembly module — no upload, no server, no storage, no analytics on your image. Close the tab and the data is gone.
Related target sizes
- 20KB PNG — even tighter.
- 50KB PNG — small icons and graphics with a bit more resolution.
- 30KB JPEG — the better choice for photos if the system accepts JPEG.
Whatever number your system states, type it and the tool lands at or under it — privately, in your browser, with no upload.
Frequently asked questions
Can it compress HEIC to exactly 30KB PNG?
Yes. PNG is lossless with no quality dial, so the tool reduces the image's dimensions with a high-quality Lanczos filter until the lossless PNG fits at or under 30KB. You always get a PNG of 30KB or less, never over, with no quality loss from the encode.
Why does the PNG end up so small?
Because PNG is lossless and keeps every pixel, a 30KB cap holds only a small number of pixels — typically around 140–160 pixels on the long edge for a photograph. At this size PNG is best for small icons and graphics. If the system accepts JPEG and the image is a photo, a 30KB JPEG keeps more usable resolution.
Is my photo uploaded to a server?
No. Decoding and compression run entirely in your browser via WebAssembly. Your HEIC file never leaves your device, nothing is stored, and there is no analytics on your image. Close the tab and it's gone.
Is the PNG really lossless?
The PNG encode is lossless — it preserves the decoded pixels exactly. Your HEIC was already lossy-compressed at capture, so this tool cannot recover detail the camera discarded; it guarantees no further loss while fitting the 30KB cap.
PNG or JPG for a 30KB image?
For a photograph, JPEG — it keeps more usable resolution at 30KB because it is designed for photos. Choose PNG at 30KB for small icons and graphics where losslessness or the PNG format is required and the small size is acceptable.
How is this different from a quality slider?
A slider makes you guess and re-check the size repeatedly. You enter 30KB and the tool hits it directly. PNG has no quality slider anyway — the tool adjusts dimensions to fit, losslessly.
Does it work on Android or only iPhone?
It works in any modern browser (Chrome, Edge, Firefox, Safari) on any device. HEIC is most common on iPhone, but the file can come from anywhere.
Is it free?
Yes — completely free, with no signup, no watermark, and no upload. There is no account and no plan to upgrade.
Does the output keep my photo's metadata?
No. The result is a freshly encoded PNG with none of the original's EXIF data — camera details and any embedded GPS location are stripped.
Can I compress several images at once?
One at a time. This keeps the tool simple, fast, and entirely local. If you have many to prepare, compress each individually.