Same transparency, same sharp edges, a fraction of the bytes. Drop a PNG and export it as WebP with a live size readout — processed entirely on your device.
Add one or many — PNG, JPG & WebP. Or paste with ⌘/Ctrl + V
Load your PNG into the editor on this page — WebP is already chosen as the export format, and a toast confirms it. Set the quality slider, check the live size estimate, and click Export. Because PixKit runs fully in your browser, the conversion is instant and your image is never uploaded anywhere.
Clean the Gemini sparkle, then finish the job — crop, resize, convert and adjust without uploading a single pixel.
Reverse-alpha math restores the true pixels under the Gemini logo — no blur, no AI guesswork.
Crop to any aspect ratio with draggable handles, then resize to exact pixels or quick scales.
Export to PNG, JPG or WebP with a quality slider and a live file-size estimate.
Every tool runs locally with undo/redo. Nothing is uploaded — it even works offline.
WebP is preset on this page — you just decide how small.
Drag and drop, paste, or pick files — transparency in the PNG carries straight through to the WebP, no flattening.
The toast reads "Ready — click Export to download as WebP." In the export card, drag the quality slider and watch the size estimate update live; 80–90 keeps graphics and screenshots looking identical at a fraction of the PNG's weight.
Download the WebP, or load a whole set of PNGs and export them together as a ZIP. There's also a target-KB field if you need to duck under a specific size.
Replacing PNG interface shots and illustrations with WebP is a straight page-weight cut with no visible difference — better LCP without redesigning anything.
WebP keeps the alpha channel, so logos, badges and cut-out product shots stay transparent while shedding most of their bytes.
Posts with a dozen PNG screenshots load noticeably faster as WebP — batch-convert the lot and export a ZIP.
Stores serve the same images thousands of times; a 30%+ cut per image compounds into real bandwidth and speed gains.
Need to send a huge PNG mockup? A quality-85 WebP is often a tenth of the size and looks the same on screen.
What people ask before switching their PNGs to WebP.
WebP is what you use when you like everything about your PNG except the file size. It was designed as a web-first replacement for both PNG and JPG: it compresses flat colors and sharp edges the way PNG does, supports full alpha transparency, and still comes out dramatically lighter. In lossless mode the format typically lands 25–35% smaller than an equivalent PNG; with lossy encoding at high quality — what PixKit's slider controls — savings of 60–90% are routine for screenshots and graphics, with no difference you can spot at normal viewing sizes.
The two things people fear losing in a conversion — the alpha channel and crisp edges — are exactly what WebP is good at. A transparent logo stays transparent; text in a screenshot stays legible without the smudgy halos JPG would add. At very low quality settings WebP will eventually soften fine detail like any lossy codec, so for pixel-critical assets keep the slider high (or keep a PNG master and treat WebP as your delivery format — which is the standard workflow). A good habit: convert one representative image first, flip between it and the original at 100% zoom, and lock in the quality value that passes your own eye test before running the whole batch.
For years the excuse for shipping PNG was "Safari doesn't do WebP." That era is over: every current browser — Chrome, Firefox, Safari, Edge, and their mobile versions — renders WebP natively, and has for years. Where you can still hit friction is outside the browser: some older desktop programs and upload forms don't accept it. That's what the reverse converter is for; keep your masters as PNG and you can always go back.
This page opens the PixKit editor with WebP pre-selected — drop a PNG and the toast tells you it's ready to export. Encoding uses the browser's own native WebP encoder, so it's immediate, works offline, and involves no server whatsoever: your images stay in the tab's memory on your machine. Drop an entire directory of PNGs and the filmstrip plus batch bar turn it into a one-click ZIP job, with the same quality setting applied consistently across every file — no ten-image cap, no watermarks, no sign-up. If a file needs a crop or resize on the way through, the full editor is a click away in the same rail, so converting and prepping assets becomes one sitting instead of two tools.
| PixKit | Typical online tools | |
|---|---|---|
| Where your image is processed | On your device — nothing is uploaded | Uploaded to the tool's servers |
| Price, accounts & limits | No sign-up or usage credits; browser safety limits apply | Free-tier caps, accounts, paywalls |
| Speed on large files | No upload or queue; speed depends on the device | Upload, wait in queue, download |
| Works offline | Yes — installs as a PWA | No connection, no tool |
| Transparency handling | Alpha channel preserved automatically | Some flatten to white without asking |
| Tuning size vs. quality | Live size estimate as you drag the slider | Upload, convert, download — then discover the size |
| A sitewide image migration | Batch-drop, one ZIP, no quota | File-count limits and premium tiers |
One private editor, a tool for every job — all 100% local, no upload.