Reduce Image Size
Reduce image size online without uploading anything. Drop in JPG, PNG, WEBP or AVIF and shrink the file in seconds — quality slider or exact target KB.
Files never leave your device — 100% browser-based.
When to use this tool
- An upload form rejects your image for being too large.
- Your email client warns about attachment size.
- You need to free up storage on a phone, Drive or website.
Best for
- Email attachments
- Job application portals
- Government and bank forms
- Cloud storage spring-cleans
Quality & file size notes
- • Reducing file size is a mix of compression (lower quality) and resizing (fewer pixels). The tool tries compression first, then resize if needed.
- • If your image is much larger than the display target (e.g. a 5000px photo for a 800px slot), resizing is by far the biggest saving.
Things to watch out for
- — Aggressive size reduction always trades some quality — preview before downloading.
- — Once a lossy image is shrunk, you cannot upscale it back to the original quality.
Not sure which format to choose?
Compare JPG, PNG, WEBP, AVIF, HEIC, GIF, SVG, BMP, TIFF and PDF side-by-side with use cases and trade-offs.
Read the image format guide →More questions about this tool
What's better — compress or resize?+
If the image is going to be viewed at a smaller size than its pixel dimensions, resizing first gives much bigger savings with no visible loss. Then compress for the final reduction.
Can I keep dimensions and still shrink the file?+
Yes — drop quality and switch to a more efficient format (JPG or WEBP). For photos this often hits a 500 KB / 100 KB target without resizing at all.
Will the image still look sharp?+
Down to about 60–70% of the original quality, most photos look fine. Below that, fine detail and skin texture start to soften.
Why use this tool?
Built for speed, privacy and simplicity. No accounts, no installs, no watermarks.
Runs 100% in your browser — files never leave your device
Free and unlimited — no account, no watermarks
Bulk compress dozens of images in parallel
How it works
Three simple steps. Everything happens in your browser.
Drop your images into the box above
Choose a target file size or move the quality slider
Click Compress and download the smaller files
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Frequently asked questions
Quick answers about how this tool works.
Are my images uploaded anywhere?
No. All compression happens locally in your browser using the Canvas API. Your files never leave your device.
Is the compressor free?
Yes — fully free, unlimited, no account, no watermarks.
Will my image lose quality?
JPG, WEBP and AVIF use lossy compression, so some quality is traded for smaller files. Use the quality slider to find the sweet spot. PNG is lossless — most savings come from re-encoding and stripping metadata.
How small can I make my images?
Pick a target file size (in KB) and we'll auto-tune quality to get as close as possible while preserving the best look.
Is EXIF metadata removed?
Yes — re-encoding strips EXIF, GPS coordinates and camera tags, which also reduces file size.
Does it work on mobile?
Yes. The compressor is fully responsive and runs on any modern phone, tablet or desktop browser.