Image Compressor
Compress your images online for free. Drag in JPG, PNG, WebP, AVIF, or GIF files, set a quality level or an exact KB target, and download smaller files without leaving your browser.
Drop your images here
Supports JPEG, PNG, WebP, AVIF, GIF, HEIC, and more
See What Compression Actually Costs You
The same photo at two file sizes. Drag the handle and look for the difference.
Compress Images Online in 3 Steps
Upload your images. Drag and drop one photo or a whole batch onto the tool, or click to select files from your computer or phone. Each file appears in a queue.
Set your quality or target size. Drag the quality slider, or switch to target size and enter a value like 100KB or 1MB. Choose an output format such as JPEG, PNG, WebP, AVIF, or GIF, and resize if you need smaller dimensions too.
Download your compressed files. Click compress, then download each file on its own or grab every finished image together in one ZIP. No account or upload required.
Everything You Get From This Free Image Compressor
Built for speed, real file size reduction, and full privacy. Compress single photos or full batches without installing anything.
Lightning-Fast Batch Compression
Drop in dozens of photos and compress the whole batch at once. Each file processes in your browser with no upload wait, and finished files download together in one ZIP.
100% Private, Never Uploaded
Every file is compressed locally in your browser. Your photos are never sent to a server, logged, or stored anywhere, so it works for sensitive and personal images too.
Quality Slider or Exact Target Size
Drag the quality slider from 1 to 100 for quick control, or switch to target size and type a value like 100KB, 500KB, or 1MB. The tool searches quality settings automatically until your file fits.
Every Major Format, In and Out
Upload JPEG, PNG, WebP, AVIF, GIF, or HEIC files. Export as JPEG, PNG, WebP, AVIF, or GIF, or keep the original format and just shrink the file size.
Before and After Comparison
Drag a slider across the preview to compare the original with the compressed version. Every file shows its exact size and how much you saved.
No Sign-Up, No Watermarks
Upload files up to 50 MB each with no daily cap on how many batches you run. Every download is watermark-free, and you never need an account to use the tool.
Popular Ways to Use an Image Compressor
From faster web pages to smaller email attachments, compressing images solves real, everyday file size problems.
For Web and Blog Performance
Shrink hero images and thumbnails so pages load faster and rank better in search results. Set a target size in KB to hit a specific budget for every image on a page.
- Cut Largest Contentful Paint by loading smaller hero images
- Batch compress a full folder of assets before you upload them to your CMS
- Keep image quality high while cutting page weight for better Core Web Vitals
For Email and Messaging
Get large photos under the size caps used by email and chat apps without cropping or resending. Pick a target size like 100KB or 1MB and let the tool find the right quality automatically.
- Fit dozens of photos under Gmail and Outlook attachment limits
- Speed up uploads in Slack, Discord, or Teams
- Shrink high-resolution scans of receipts and documents before sending
For Storage and Archiving
Free up space on your phone, laptop, or cloud drive by compressing old photo libraries in batches. Strip metadata and choose WebP or AVIF output for smaller archives.
- Shrink a full camera roll export before you back it up
- Cut down on Dropbox, iCloud, or Google Drive storage use
- Convert bulky PNG screenshots to WebP for smaller archives
Explore More Tools
Discover other free tools that work great alongside this one
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Frequently Asked Questions About Image Compression
Answers about target sizes, formats, batch limits, and privacy for the online image compressor.
How do I compress an image to a specific KB size?
Open the target size field in the settings panel. Type a value like 100KB, 250KB, 500KB, or 1MB, or tap one of the presets. The tool then tries different quality levels until the file fits your target. While target size is on, the quality slider switches off.
What is the difference between resizing and compressing an image?
Compressing lowers file size by reducing quality or metadata while keeping the same width and height. Resizing changes the actual pixel dimensions of the image. This tool does both: use the quality slider or target size field to compress, and the resize section to scale by percentage or set a maximum edge length in pixels.
How do I compress multiple images at once?
Drag a batch of photos into the upload area and each one lands in a queue with its own progress, size, and status. Click compress once to process every file, then download them one by one or grab all finished images together in a single ZIP.
Which image format gives the smallest file size?
WebP and AVIF usually produce the smallest files at a matching quality level, and both support a lossless mode in the format settings if you need pixel-perfect output. JPEG is the safest choice for compatibility with older apps. PNG stays lossless by default, which suits graphics and images with transparency.