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Compress Image Online — Free

Reduce image file size without losing quality. Supports JPEG, PNG, WEBP, AVIF, HEIC, TIFF and more — no account needed.

Drop an image here

or click to browse · max 20 MB · JPEG, PNG, WEBP, AVIF, HEIC, TIFF

Unlike TinyPNG

HEIC and AVIF — formats most free compressors skip

TinyPNG doesn’t accept HEIC files (iPhone’s default photo format since iOS 11) and doesn’t output AVIF (the format Google recommends for Core Web Vitals). This tool does both. HEIC input is fully supported — upload directly from iPhone without converting first. Choosing AVIF as the output format typically produces files 40–50% smaller than JPEG at equivalent visual quality. The quality slider, output format selector, and metadata-strip option work on HEIC and AVIF exactly as they do on JPEG and PNG. All processing runs server-side via ImageMagick; nothing is stored after download.

Frequently asked questions

What is the best way to compress an image without losing quality?

Use a quality setting between 75–85% for JPEG and WEBP images. This range removes invisible data while preserving detail the eye can see. HEIC and AVIF achieve even smaller files at the same perceived quality because they use more efficient codecs.

How do I compress an image online for free?

Drop your image above, choose a quality level (the default 82 is a solid balance), pick an output format, and click Compress Image. Download your compressed file instantly — no account required, no watermarks.

Which image formats can I compress?

This tool accepts JPEG, PNG, WEBP, AVIF, HEIC, BMP, TIFF, and ICO as input. You can output to JPEG, PNG, WEBP, or AVIF. Switching to WEBP or AVIF on output often gives the biggest file size reduction.

What is the file size limit?

Each image can be up to 20 MB. The tool processes one image at a time. For batch compression of up to 12 images at once, use the Image Optimizer.

Are my images stored after compression?

No. Compressed files are held on the server only long enough for you to download them, then automatically deleted. Nothing is retained beyond your session.

Can I compress HEIC files from my iPhone?

Yes. HEIC is fully supported as an input format — a feature TinyPNG and most free online compressors do not offer. Upload your HEIC directly without converting first. You can output to JPEG, WEBP, or AVIF after compression.

Does this tool output AVIF?

Yes. Select AVIF in the output format dropdown. AVIF typically produces files 40–50% smaller than JPEG at equivalent visual quality and is supported by all major modern browsers: Chrome 85+, Firefox 93+, Safari 16.4+, and Edge 121+. It’s the recommended format for web images where file size matters most.

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Image compression reduces file size by removing data the human eye cannot distinguish from the original. The result is a smaller file that loads faster, costs less bandwidth to serve, and takes less storage — with no perceptible quality difference at the right settings.

AT USE Compress Image is powered by ImageMagick, the same engine used in professional publishing, print, and broadcast workflows. Upload your photo or graphic, set a quality level (75–85 is the sweet spot for most images), choose an output format, and download a smaller file in seconds. All processing happens on the server; your images are automatically deleted after download.

Quality settings

For JPEG and WEBP, quality is a scale from 1 to 100 where higher numbers retain more detail. At 85, the difference between the compressed file and the original is invisible to the human eye, even at full zoom. At 75, files are typically 40–50% smaller than the original with no visible quality loss for photographs. Below 60, compression artifacts — blocky areas and loss of fine detail — become visible. For most web images, 75–85 is the optimal range.

Format matters as much as quality

Switching to a more efficient output format often reduces file size more than adjusting quality alone. WEBP at quality 80 is typically 30–40% smaller than JPEG at the same quality level. AVIF at quality 75 is 40–50% smaller than JPEG. Both WEBP and AVIF are now supported by all major browsers (Chrome, Firefox, Safari 16+, Edge). For images on modern websites, outputting to WEBP or AVIF delivers the best combination of quality and size.

HEIC input is fully supported — including HEIC compression — which TinyPNG and most other free online compressors do not offer. TIFF, BMP, ICO, and PNG input are also accepted. Maximum file size per image is 20 MB.

Common use cases

Frequently asked questions

What is the best way to compress an image without losing quality?

Use a quality setting between 75–85% for JPEG and WEBP images. This range eliminates most invisible data while preserving detail the eye can see. HEIC and AVIF achieve even smaller files at the same perceived quality because they use more efficient compression codecs.

Which image formats can I compress?

This tool accepts JPEG, PNG, WEBP, AVIF, HEIC, BMP, TIFF, and ICO as input. You can output to JPEG, PNG, WEBP, or AVIF. Converting to WEBP or AVIF on output typically gives the biggest file-size reduction.

What is the file size limit?

Each image can be up to 20 MB. For batch compression of up to 12 images at once, use the full Image Optimizer.

Are my images stored after compression?

No. Compressed files are held on the server only long enough for you to download them, then automatically deleted. Nothing is retained beyond your session.

Is this tool free?

Yes — completely free. No account required, no watermarks on output, no usage cap beyond the 20 MB per-file technical limit.

Can I compress HEIC files from my iPhone?

Yes. HEIC is fully supported as an input format — a feature TinyPNG and most free online compressors do not offer. Upload your HEIC directly without converting first. You can output to JPEG, WEBP, or AVIF after compression.

Does this tool output AVIF?

Yes. Select AVIF in the output format dropdown. AVIF typically produces files 40–50% smaller than JPEG at equivalent visual quality and is supported by all major modern browsers: Chrome 85+, Firefox 93+, Safari 16.4+, and Edge 121+. It is the recommended format for web images where file size matters most.