How to Use the Image Compressor
Click the upload area (or drag and drop) to select one or several images. Pick Quality Mode to control compression manually with a slider, or Target Size Mode to enter an exact size (like 100 KB) and let the tool find the best matching quality automatically. Press Compress Image(s) to process everything at once, then download files individually or all together as a ZIP.
Compress Images in Bulk
Select multiple files at once from the upload area or drop a whole folder selection of images onto it. Each image is compressed with the same settings, and results appear as individual cards with their own preview, savings percentage, and download link.
Compress an Image to a Specific Size (e.g. 100kb)
Switch to Target Size Mode, enter the size you need — for example 100 KB for a form upload, or 200 KB for a resume photo — and the tool automatically searches for the highest quality setting that still fits under that limit.
What is an Image Compressor?
An image compressor reduces a photo or graphic's file size by re-encoding it at a lower quality level or smaller dimensions, while trying to keep it looking as close to the original as possible. This is different from simply resizing an image's dimensions — compression specifically targets file weight (KB/MB), which matters for page speed, storage, and upload limits.
This tool compresses JPG, PNG, and WebP images directly in your browser, so you get an instant before/after comparison without waiting on a server round-trip.
Why Compress Images?
- Faster-loading websites and better Core Web Vitals scores
- Smaller files to store, back up, or send over email
- Lower bandwidth usage on mobile connections
- Faster uploads to forms, CMS platforms, and marketplaces
- Meeting strict file-size limits (e.g. resumes, ID photos, government forms)
Supported Image Formats
This compressor currently supports JPG/JPEG, PNG, and WebP files. You can also convert between these formats using the output format selector above — for example, compressing a PNG and saving it as WebP for a smaller final file.
Tips for Best Results
- 70–85% quality usually looks nearly identical to the original with a much smaller file size
- Below 50% quality, visible compression artifacts may appear
- PNG images with transparency compress differently than JPG — try WebP for the best balance without losing quality
- Use Target Size Mode when a website, form, or application enforces a strict upload size limit
Privacy
This tool runs entirely in your browser using the HTML5 Canvas API. Your images are never uploaded to any server, even when compressing many files in bulk. As a side effect of re-encoding through Canvas, metadata such as EXIF camera and location data is not carried over to the compressed file.
Related Tools
Image Format Converter
Convert JPG, PNG, and WebP.
Length Converter
Convert cm, inch, foot & more.
Frequently Asked Questions
Yes, lowering the quality slider reduces file size but also reduces visual quality. Find a balance that looks good while keeping the file small, or use Target Size mode to let the tool pick the best quality automatically.
No. Compression happens entirely in your browser using the Canvas API. Your images never leave your device, even when compressing in bulk.
Yes. Drop or select several images and the tool compresses each one with the same settings, showing individual download links and a Download All (.zip) option.
Yes. Switch to Target Size mode, enter a size such as 100 KB, and the tool automatically searches for the highest quality that fits under that size.
Yes, though PNG compression behaves differently than JPG since PNG is typically lossless. For maximum size reduction on PNGs, try converting to JPG or WebP first, or choose WebP as the output format here.
Yes. It can be used online without creating an account, with no limit on how many images you compress.
Yes. JPG and JPEG are fully supported, including converting them to WebP for extra savings.
Yes. WebP files can be compressed and re-saved as WebP, or converted to JPG if you need wider compatibility.
WebP generally gives the smallest file size at a given quality level and is supported by all modern browsers, making it a strong default for web use. JPG remains a safe, universally compatible choice for photos.