Compress images without losing visible quality
If you're uploading photos to a website, sending them over email, or just trying to free up phone storage, image compression is the cheapest performance win there is. A 6 MB photo from your phone, compressed sensibly, becomes a 400 KB file that looks identical to the human eye. Toolvana's image compressor lets you do that in seconds, in your browser, with a quality slider so you can pick the exact trade-off.
JPEG vs WebP vs PNG — which should you pick?
JPEG is the default for photographs. It supports lossy compression, has near-universal browser/email support, and looks great at quality 70–85%. WebP typically beats JPEG by 25–35% at the same visual quality and is now supported by every modern browser (Chrome, Firefox, Safari 14+, Edge). Use WebP for the web. PNG is lossless — best for screenshots, logos, and any image with sharp edges. Don't use PNG for photos; the file will be 5–10× larger than necessary.
What quality setting should I use?
For most photos uploaded to social media or web: 75–85%. Below 60% you'll see "JPEG artifacts" — blocky patterns near edges. Above 90% the file gets much bigger with no visible improvement. The preview above updates live, so eyeball the result and pick the sweet spot for your image.
Use cases
- Website performance — every 100 KB you shave off your hero image makes pages load measurably faster. Google ranks faster pages higher.
- Email attachments — most providers cap attachments at 20 or 25 MB. Compression lets you send a folder of photos in one message.
- Phone storage — your phone's camera produces 4–8 MB photos. Most of that detail isn't visible at typical viewing sizes.
- Marketplace listings — eBay, OLX, Facebook Marketplace all auto-compress (badly) on upload. Pre-compressing gives you control over the result.
FAQ
Is my photo uploaded?
No. Compression happens via your browser's Canvas API. Nothing leaves your device.
Can I batch-compress multiple images?
Not in this tool yet — batch is on the roadmap. For now, drop one at a time.
Why is the WebP version smaller than JPG at the same quality?
WebP uses a more modern compression algorithm (VP8-derived). It's 25–35% smaller at equivalent visual quality.
Will quality keep dropping if I compress an already-compressed photo?
Slightly, yes — each lossy compression is generative loss. Keep an original and compress from that, rather than compressing already-compressed files repeatedly.
Does the tool preserve EXIF data?
No — the canvas re-encode strips EXIF. If you need to preserve location/camera metadata, use a different workflow.