Drop a folder, or click to choose images
JPEG · PNG · WebP · AVIF · HEIC · SVG · GIF · JXL · TIFF
Files never uploaded · 100% client-side · I cannot see your photos · Privacy policy
Pipeline ready: PNG → QOI (any input still accepted)
Asset Melt Studio is a PNG to QOI converter that runs entirely on your device. Simple lossless QOI from PNG sources — a sibling container for tools that prefer QOI’s decode story over PNG.
Drop one PNG or a whole folder — the pipeline is already set to QOI using QOI for fast lossless tooling. That is the PNG to QOI workflow people search for: convert PNG to QOI without an upload, then resize, crop, or hit a size budget (when the codec allows) before you download.
Input is not locked to PNG: you can still open JPEG, PNG, WebP, AVIF, HEIC, GIF, and more in the same session. The PNG to QOI URL simply pre-selects QOI so png to qoi jobs start in one click.
A ceramic mug product PNG converted to QOI for an engine that loads QOI.
Similar size, QOI decode path
Before · PNG480 KB — Product texture
After · QOI510 KB — Lossless QOI
Step 1
You are already on the PNG to QOI converter. Output is pre-selected as QOI. You can still drop mixed formats — the PNG to QOI URL is a starting point, not a file-type lock.
Step 2
Drag PNG images onto the studio, click to choose, or paste. Folder drops queue nested images. Then process — PNG to QOI encoding runs in Web Workers on this device.
Step 3
Use the before/after scrubber until the PNG to QOI result looks right. Adjust quality, crop, or resize, then download one QOI or a ZIP of the batch.
| Topic | PNG | QOI |
|---|---|---|
| Web | PNG yes | QOI no |
| Lossless | Oxipng | QOI from same pixels |
| Size | Often similar | Often similar |
| Size budget | Skipped | Skipped |
| Palette preprocessor | Optional on PNG out | Not used for QOI |
PNG to QOI is a lossless-from-pixels container swap. Sizes are often similar; sometimes QOI wins, sometimes Oxipng wins.
Use PNG to QOI when the next program in the chain wants QOI. Do not use it as a TinyPNG replacement.
Size budget skips QOI. Reduce palette is PNG-output only — it does not apply to QOI.
| Source | Before | After | Note |
|---|---|---|---|
| UI PNG | 80 KB PNG | ~90 KB QOI | Same pixels, different container |
| Photo PNG | 4 MB PNG | ~4.2 MB QOI | Neither is a web photo format |
| Need smaller web | 80 KB PNG | Use WebP/AVIF | Not QOI |
Drop PNG. QOI encode. Alpha is supported by QOI.
Preview should match the PNG pixels.
ZIP for a texture pack if your engine wants QOI.
Game/tool pipelines with QOI loaders.
Comparing decode speed in your own software.
Skip PNG to QOI for public websites.
Pixel-identical intent from the decoded PNG. If they differ, that is a bug — report it. There is no quality slider.
Resize if the engine wants a max texture size.
Keep PNG for humans.
Do not enable PNG palette controls expecting QOI-8 — not a thing here.
Image processing is 100% client-side in your browser with WebAssembly. Your photos are not uploaded, I cannot see or recover them, and sampled session replay is UI-only and does not include image pixels (media is blocked). The site still sends usage analytics and crash reports — details are on the privacy page. That includes every PNG to QOI job — the converter never needs your files on a server.
Upload compressors send your bitmap to someone else’s API. Asset Melt keeps png to qoi on this device. Session replay, if sampled, is UI-only and does not include image pixels.
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