Free image compressor: compress JPG, PNG, and WebP by 50–90% while keeping them sharp. Reduce image size entirely in your browser — files never leave your device.
The same reliable Vocce pipeline, focused on this job. Start free, then plans from $9.90/mo when you need more.
Most online image compressors have a dirty secret: they're upload services. Your photo travels to someone's server, sits in a queue, gets processed, and — you hope — gets deleted. Vocce's image compressor runs entirely in your browser. The file never leaves your device, which is why there's no upload bar, no queue, and no privacy question to answer in the first place.
Local also means instant. Compression uses your browser's built-in image engine — decode, optionally scale down over-sized dimensions, re-encode as WebP (or JPEG where WebP isn't available) at a tuned quality level. A 12-megapixel phone photo compresses in well under a second, and because there's no server doing the work, there's no file-count limit and nothing to pay for.
The three levels map to real situations. Balanced re-encodes at quality 72 with a 2560px cap — visually indistinguishable for screens, usually 60–80% smaller. Smallest targets chat apps and 1MB upload limits: quality 55, 1600px cap, routinely 80–90% smaller. High keeps quality 85 and up to 4096px for images that still have work to do. And one guarantee across all three: if re-encoding would somehow make your file bigger — already-optimized images exist — you get the original back, never a worse file.
Nothing here phones home: no signup, no watermark, no "3 free images per day". It's a browser capability done properly, and it stays free because it costs us nothing to run — your device does the work.
The file is processed by your own browser. Airplane mode works. There is no server to trust, because there is no server.
WebP re-encoding at tuned quality levels typically cuts photos by half at minimum — often far more.
No upload time, no queue. Compression finishes in under a second for typical photos.
If your image is already optimal, you get the original back — a guarantee upload-based tools rarely make.
Phone photos are often 4000px wide for a screen that shows 1200. Each level caps dimensions sensibly, or keeps them high when you choose High.
Exact input and output sizes with the percentage saved — you judge the trade before keeping anything.
Compress a thousand images if you like. Your CPU is the only meter running.
Modern WebP output by default, automatic JPEG fallback where WebP encoding isn't supported.
Once the page is open, the tool keeps working without a connection — it's all local code.
Squeeze hero images and thumbnails before committing — better Lighthouse scores without an asset pipeline.
Get a photo set under the 25MB ceiling — or a single scan under a form's 1MB limit — with Smallest.
Listing photos load faster and pass upload limits on eBay, Etsy, and marketplace forms.
Compress screenshots before they hit the CMS, so pages stay fast and storage stays cheap.
ID scans and contracts compress without ever touching a third-party server — because nothing is uploaded.
No upload round-trip means the tool is exactly as fast on hotel Wi-Fi as on fiber.
Really. Compression runs in your browser using the Canvas API — you can open this page, switch to airplane mode, and it still works. There's no server-side processing at all.
Photos typically shrink 50–90% depending on the level. Balanced usually lands 60–80% smaller; Smallest goes further with a lower quality and 1600px cap. Already-compressed images shrink less — and if re-encoding can't beat the original, you get the original back.
JPG, PNG, and WebP in; WebP out by default (JPEG fallback where WebP encoding isn't available). PNG screenshots usually see the biggest savings.
Each level trades size against fidelity honestly: Balanced is visually indistinguishable on screens, Smallest shows minor softness at 100% zoom, High is conservative. The before/after sizes let you judge before saving.
Over-sized dimensions are capped per level (2560px balanced, 1600px smallest, 4096px high) — a major, legitimate source of savings for phone photos. Images under the cap keep their dimensions.
No count limits and no daily quota — your device does the work, so there's nothing for us to meter. Very large images are bounded only by your browser's memory.
Free, no signup, no watermark. There's genuinely no catch: local processing costs us nothing, and the tool introduces Vocce's other media tools — that's the business model.
Yes — modern mobile browsers support everything the tool uses. Compressing a photo on the phone that took it is the intended use.
Transparency is preserved: WebP output keeps the alpha channel intact. If a browser falls back to JPEG (which has no alpha), transparent areas render on white.