How much can images be compressed?

Typically 60-90% file size reduction with no visible quality loss. A 5MB photo can become 500KB while looking identical.

Which format compresses best?

WebP offers the best compression. JPG is great for photos. PNG is best for graphics with transparency.

Is quality lost during compression?

With the default settings, compression is virtually lossless to the human eye. Adjust the quality slider for more control.

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How to Compress Images to Exactly 100KB, 200KB, or 50KB

Switch to Target Size Mode, enter your required KB limit, upload your image, and click Compress. The engine automatically finds the optimal quality setting using a binary search " you get the sharpest possible image that fits under your target file size.

"' Your privacy is guaranteed: This tool uses the browser's built-in Canvas API. Compression runs entirely inside your tab " your images are never uploaded to any server, never stored, and never shared.

File Size Requirements by Use Case (2026)

Use Case	Required Size	Format	Recommended Dimensions
Government exam / job forms (India)	Photo: 20"50KB Signature: 10"20KB	JPEG	Photo: 200-230px Signature: 140-60px
WhatsApp profile picture	< 5MB (auto-compressed)	JPG/PNG	800-800px
Discord profile (non-Nitro)	< 10.24 MB (static)	JPG/PNG	512-512px
Shopify product image	< 20MB, ideally < 1MB	WebP/JPG	2048-2048px
Apple App Store screenshot	< 500KB recommended	PNG/JPG	1290-2796px (iPhone 15 Pro Max)
Email newsletter image	< 200KB	JPG/WebP	600px wide max
Web page (Core Web Vitals)	< 150KB per image	WebP/AVIF	Match display size
LinkedIn profile photo	< 8MB	JPG/PNG	400-400px min

Lossy vs Lossless: Which Should You Use?

Lossy compression (JPEG, WebP, AVIF) removes some image data permanently. At 80"90% quality, the difference is invisible to the human eye but file sizes drop by 50"80%. Use lossy for photos, hero images, and product shots. Lossless compression (PNG, WebP lossless) preserves every pixel exactly. Use it for logos, screenshots, icons, and anything with sharp edges or transparency.

Why WebP and AVIF Beat JPEG in 2026

JPEG was invented in 1992. Modern formats compress the same visual quality into dramatically smaller files:

Format	Size vs JPEG	Browser Support	Best For
JPEG	Baseline	Universal	Legacy compatibility
WebP	'25 to '34%	97%+ browsers	Everything in 2026
AVIF	'30 to '50%	92%+ browsers	Maximum compression
PNG	+50 to +200%	Universal	Logos, screenshots

What "Stripping EXIF" Means (And Why It Matters)

Every photo taken with a smartphone contains hidden metadata called EXIF data: GPS coordinates, camera model, date/time, and sometimes even your name. When you post images online, this data is embedded in the file and can be extracted by anyone. Our Strip EXIF toggle removes all this metadata during compression " a canvas re-encode naturally can't preserve binary EXIF blocks, so you always get a clean, private output file.

Frequently Asked Questions

Is it safe to compress images online?

Yes " 100%. This tool uses client-side JavaScript and the browser's Canvas API. Your images are never uploaded to any server. Compression happens entirely inside your browser, which means zero privacy risk, zero server latency, and it works even offline after the page loads.

How do I compress a photo to 100KB for a government form?

Switch to Target Size Mode, type "100" in the KB field, then upload your photo and click Compress. For most Indian government exam portals (SSC, UPSC, Railway, IBPS), you'll want JPEG format at 200-230px, 20"50KB. Use the Max Width dropdown to set the pixel size, then set your target KB.

How do I compress a signature to 100KB or 50KB?

Upload your scanned signature image, switch to Target Size Mode, enter 50 (or whatever your form requires), set the output to JPEG, then click Compress. The binary-search algorithm will find the exact quality level to hit your target. Typical signature files need to be 10"30KB at 140-60px.

Why is my image still too big after compression?

This happens most often with PNG files (which are lossless by nature) or very high-resolution photos. Try: (1) switching the output format to WebP or JPEG, (2) enabling Target Size Mode and lowering the target, (3) reducing the Max Width to 800px or 400px. If all else fails, the engine will automatically shrink the pixel dimensions to reach your target.

Can I compress 50 images at once?

You can compress up to 20 images per batch. Simply drag and drop all your files into the drop zone at once. After compression, use "Download All" to save them individually. All processing is parallel-safe and runs in sequence to avoid overwhelming your device's CPU.

What is the difference between lossy and lossless image compression?

Lossless compression removes redundant data without any quality loss " the reconstructed image is pixel-perfect. Use it for logos, icons, and screenshots. Lossy compression discards some data to get dramatically smaller files. At 80"90% quality, the result is visually indistinguishable from the original. Use it for photos and product images on websites.

What is the best image size for a Shopify product page?

Shopify recommends 2048-2048px square images, ideally under 1MB (1000KB). Use WebP format with our tool at around 85% quality to hit ~200"500KB for most product photos. Faster images = better Core Web Vitals = higher Google ranking for your store.

Bildkompressor

How to Compress Images to Exactly 100KB, 200KB, or 50KB

File Size Requirements by Use Case (2026)

Lossy vs Lossless: Which Should You Use?

Why WebP and AVIF Beat JPEG in 2026

What "Stripping EXIF" Means (And Why It Matters)

Frequently Asked Questions

Frequently Asked Questions

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