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Frequently Asked Questions
▸ Image Compressor FAQ
How does online image compression work?
This image compressor uses your browser's built-in Canvas API and encoding capabilities to re-encode images at a lower quality or smaller resolution. For JPEG and WebP, it uses lossy compression controlled by a quality slider (1–100%). For PNG, it converts to an optimized format. Everything runs in your browser — no images are uploaded to any server.
Is this image compressor free?
Yes, completely free with no limits on file size or number of images. Unlike TinyPNG which limits free usage to 500 images/month and charges for the API, or Squoosh which only handles one image at a time, this tool offers unlimited batch compression with no signup, no paywall, and no ads.
Is my data safe when compressing images?
Yes. This image compressor runs 100% in your browser using JavaScript and the Canvas API. No images are ever sent to a server. You can verify this in your browser's network tab — zero outbound requests with your data. Your images never leave your device.
What image formats are supported?
You can compress JPEG, PNG, WebP, GIF, BMP, and TIFF images. Output formats include JPEG, PNG, and WebP. You can also convert between formats — for example, convert PNG to WebP for much smaller file sizes while maintaining quality.
How much can I reduce image file size?
Typical compression results: JPEG images can be reduced 60–80% at quality 70–80 with minimal visible difference. PNG to WebP conversion often achieves 80–90% reduction. Results vary based on image content, resolution, and chosen quality level. The before/after comparison lets you find the perfect balance.
Can I batch compress multiple images at once?
Yes. Drag and drop or select multiple images at once. All images are compressed in your browser. You can download them individually or as a ZIP archive. There is no limit on the number of images you can compress at once.
What is lossy vs lossless compression?
Lossy compression (JPEG, WebP) removes some image data to achieve smaller files — the quality slider controls how much. Lossless compression keeps all original data but achieves less size reduction. This tool uses lossy compression for JPEG/WebP output and offers PNG as a lossless option.
How does this compare to TinyPNG or Squoosh?
TinyPNG uploads your images to their servers and limits free usage to 500 images/month. Squoosh only processes one image at a time. This tool compresses unlimited images in batch, runs 100% client-side for maximum privacy, requires no signup, and is completely free with no usage limits or paywalls.
Free Online Image Compressor — Compress JPEG, PNG & WebP
This free image compressor tool lets you reduce the file size of your images without losing visible quality. Whether you need to compress JPEG photos for email, optimize PNG graphics for the web, or convert to WebP for faster page loads — this tool handles it all directly in your browser.
Why Use a Client-Side Image Compressor?
Most online image compressors like TinyPNG, Compressor.io, and iLoveIMG upload your images to their servers for processing. This raises privacy concerns and imposes usage limits. Our image compressor runs entirely in your browser using the Canvas API — your images never leave your device. Zero server uploads, zero data collection, zero limits.
Compress Images for Web, Email & Social Media
Reduce image file sizes for faster website loading, email attachments under size limits, and social media posts. The quality slider lets you find the exact balance between file size and visual quality. Use the before/after comparison to verify results before downloading.
Batch Image Compression & Format Conversion
Drop multiple images at once and compress them all in seconds. Convert between JPEG, PNG, and WebP formats. WebP typically produces files 25–35% smaller than JPEG at equivalent visual quality — ideal for web performance optimization. Set a max width to resize oversized images while compressing.
Free Alternative to TinyPNG, Squoosh & Compressor.io
Unlike paid compression tools that charge per image or impose monthly limits, this image compressor is completely free with no restrictions. No signup required, no watermarks, no ads. Compress as many images as you need, as often as you need.