Free Image Compressor
Reduce image file size using canvas compression, supporting PNG, JPEG, WebP.
Compressing..
Image compressor for faster websites, smaller uploads, and batch processing
People reach for an image compressor when page‑speed scores drop, an upload form rejects a file as too large, or a batch of product photos needs to be slimmed before a catalog launch. This image compressor accepts JPG, PNG, and WebP, supports batch uploads, and keeps all processing local to the browser. There is no file‑size or file‑count limit beyond what your device memory can handle, and no account is required.
Three output formats are available — JPG (smallest for photos), WebP (modern, good compression‑to‑quality ratio), and PNG (lossless for graphics with sharp edges). A quality slider lets you trade file size for visual fidelity, and the side‑by‑side preview shows the compressed result against the original so you can inspect the difference before downloading.
Who uses it
- Website owners and bloggers — reduce image payload size to improve Core Web Vitals and page‑speed scores.
- E‑commerce sellers and marketplace operators — compress product‑photo batches before uploading to Shopify, Amazon, eBay, or Etsy.
- Designers and content creators — export compressed assets for clients who do not need print‑resolution files.
- Support and documentation teams — shrink screenshots before embedding them in knowledge‑base articles and bug reports.
How to use it well
- Drop files onto the upload area or click to browse. Multiple files are processed in parallel — no need to wait for one before adding the next.
- Adjust the quality slider. Lower values produce smaller files; 70–85% is usually a good balance for web photos. PNG quality controls the compression level rather than visual quality.
- Choose the output format. JPG is best for photos, WebP for modern browsers, and PNG for images that need lossless quality or transparency.
- Compare the compressed preview against the original. Download individual files or use "Download All as ZIP" for batch results.
Practical tips
- JPG at 70–80% quality usually looks identical to the original on a screen while being 40–60% smaller.
- Compress before uploading to a CMS or e‑commerce platform — CDN‑side compression is a complement, not a first pass.
- Batch related images together so quality and format settings stay consistent across the set.
- Keep original master files in a separate folder if the images may need re‑editing or if you may need a print‑resolution version later.
Common use cases
- Reducing image weight before publishing a blog post or portfolio page
- Preparing e‑commerce product photos for faster category and search‑result pages
- Shrinking screenshots for documentation, bug reports, and support‑ticket attachments
- Compressing social‑media assets before sharing with a team or client
- Batch‑compressing a folder of photos before uploading to cloud storage
Privacy and browser‑side processing
All compression runs locally in your browser. Images never leave your device — important for product photos, personal pictures, screenshots containing internal information, and any image you would rather keep private. For regulated content, follow your organisation's data‑handling policy.
Related searches and tools
People who use this image compressor often also need Compress Image to 100KB (hit a specific file‑size target for form uploads), Image to JPG (convert PNG, WebP, AVIF, HEIC, and other formats to JPG), and Image Resizer (change pixel dimensions before compression). All three run in‑browser.
Frequently Asked Questions
Is this image compressor free to use?
Yes. The tool is free to use in your browser and does not require an account.
Do I need to install anything?
No. The workflow runs in a normal modern browser, so you can use it on desktop or mobile without installing extra software.
Is my input uploaded to a server?
The tool is designed for browser-side processing wherever possible. Avoid using any online tool for highly sensitive production secrets unless your own policy allows it.
What should I check before using the result?
Review the output for accuracy, file size, readability, compatibility, and any platform-specific requirements before submitting or publishing it.
Can I use this for business or client work?
Yes, but you should still verify important results and keep source files or records when the work affects billing, security, legal, or operational decisions.
Why does the result look different from another tool?
Different tools may use different defaults, quality settings, parsing rules, or rounding behavior. Check the options and compare with your target platform requirements.