Compress PNG Online
Free, instant, and private. Up to 60% smaller files — no upload required.
Drop images here or click to browse
PNG, JPG, WebP, GIF, BMP, HEIC
What is PNG compression?
PNG compression reduces the file size of a PNG file while keeping it as visually close to the original as possible. Instead of uploading files to a remote server and waiting for processing, Pixvert's PNG compressor runs the entire operation locally in your browser using the Canvas API, so PNG files never leave your device.
Because PNG is lossless, compressing it means optimizing the internal encoding — reducing the color palette when possible and eliminating inefficient pixel patterns — rather than discarding image data.
PNG compression removes redundant data to shrink file size while keeping the lossless quality PNG is known for. Ideal for icons, logos, and graphics. Whether you're preparing files for a website, an email, or cloud storage, compressing PNG images first means faster uploads, less bandwidth used, and quicker load times for anyone who opens them.
How to compress PNG images online
- 1
Upload your files — drop your PNG files into the box above, or click to browse — batch uploads are supported
- 2
Click Compress All — compression runs instantly in your browser, no server round-trip involved
- 3
Compare the result — check the new file size next to the original before downloading
- 4
Download — save files individually or grab the whole batch at once as a ZIP
When to compress PNG files
Faster websites
Smaller PNG files mean quicker page loads, which improves both user experience and search ranking.
Email attachments
Fit photos under attachment size limits without switching to a file-sharing link.
Storage savings
Free up space on your device or cloud drive by shrinking PNG files you no longer need at full resolution.
Faster sharing
Send files over messaging apps or upload them to forms and marketplaces that enforce size limits.
Why use Pixvert to compress PNG?
- ✓100% local processing: compression happens entirely in your browser — files are never uploaded anywhere
- ✓Batch support: compress multiple files in one pass and download them together as a ZIP
- ✓No signup required: use the tool immediately without an account or email
- ✓Free, with no hidden limits: no watermarks, no forced quality caps
Frequently Asked Questions
Can PNG be compressed without losing quality?
Yes. PNG compression here is lossless — it re-encodes the file more efficiently without discarding any pixel data, so the image looks identical.
Why is my PNG still large after compressing?
PNG is best for graphics with flat colors and transparency. Photographic PNGs are inherently large — consider converting to JPG or WebP for further savings.
Is it safe to compress my images here?
Yes. Everything happens locally in your browser using the Canvas API — your files are never uploaded to a server.
Is there a file size limit?
There is no hard limit set by Pixvert, but very large files depend on your device’s available memory to process smoothly.
Can I compress multiple files at once?
Yes, drop several files at once and click Compress All — every file is processed and can be downloaded individually or as a ZIP.
Can I use the compressed images commercially?
Yes, Pixvert only reduces file size — it does not alter your rights over the image or add any watermark.