Image
13Compress PNG
Reduce PNG file size up to 80% while maintaining quality. Fast, secure, and free.
Compress JPG
Compress JPG/JPEG images without losing quality. Reduce file size instantly.
Compress WebP
Optimize WebP images for better performance. Reduce WebP file size efficiently.
Compress AVIF
Compress AVIF images for next-gen web performance. Reduce file size efficiently.
Compress Image
Compress image online for free. Reduce JPG, PNG, WebP, AVIF, HEIC, GIF, BMP, and TIFF files in your browser with no upload required.
Compress Image to Target Size
Compress images to 50KB, 100KB, 200KB, or any custom target size directly in your browser with no upload required.
Document
4Compress PDF
Compress PDF online free in your browser. Reduce PDF file size without uploading your documents.
Compress PDF to Target Size
Compress PDF files to 100KB, 200KB, 500KB, 1MB, or any custom size directly in your browser with no upload required.
Compress DOCX
Compress DOCX files online in your browser. Reduce Word document size by optimizing embedded images without uploading your files.
Compress PPTX
Reduce PPTX file size by optimizing embedded images and media. Free browser-based PowerPoint compressor.
Media
10Compress MP3
Compress MP3 files online in your browser. Reduce audio size for sharing, podcasts, and storage without uploading your files.
Compress MP4
Compress MP4 videos online in your browser. Reduce video file size for uploads, sharing, and storage without uploading your files.
Compress Video by Size Limit
Compress videos to 8MB, 10MB, 25MB, 50MB, or any custom size target in your browser with no upload required.
Compress WebM
Reduce WebM file size by up to 80% while maintaining video quality. Free online WebM compressor - 100% browser-based, no upload required.
Compress MOV
Reduce MOV file size by up to 80% while maintaining video quality. Free online MOV compressor - 100% browser-based, no upload required.
Compress WAV
Reduce WAV file size by up to 90% while maintaining audio quality. Free online WAV compressor - 100% browser-based, no upload required.
Text
6Compress JSON
Minify JSON online in your browser. Remove whitespace from JSON data for smaller payloads, API responses, and production files.
Compress JavaScript
Minify and compress JavaScript code by 30-60%. Remove whitespace, comments, and optimize for production. Free online JS minifier.
Compress CSS
Minify CSS online in your browser. Remove whitespace and comments to create smaller production-ready stylesheets.
Compress HTML
Minify and compress HTML code. Remove whitespace, comments, and optimize for production. Free online HTML compressor.
Compress XML
Minify and compress XML data. Remove whitespace and optimize for smaller file size. Free online XML compressor.
Compress YAML
Minify and compress YAML data. Remove comments and redundant whitespace for compact output. Free online YAML compressor.
Archive
15Compress to ZIP
Create ZIP files online in your browser. Bundle and compress multiple files without uploading them to a server.
Extract ZIP
Extract and unzip ZIP archives in your browser. View contents and download individual files. Free online ZIP extractor.
Compress GZIP
Compress files to GZIP format in your browser. Fast, lightweight compression for single files.
Decompress GZIP
Decompress GZIP files in your browser. Extract .gz files instantly and download the original content.
Compress BZ2
Compress files to BZ2 format in your browser. High compression ratio with WebAssembly-powered processing.
Decompress BZ2
Decompress BZ2 files in your browser. Extract .bz2 files instantly with WebAssembly-powered processing.
Other
12HEIC to JPG
Convert HEIC to JPG online in your browser. Turn iPhone HEIC photos into widely compatible JPG files with no upload required.
Image Format Converter
Convert images between any format. Support PNG, JPG, WebP, AVIF, GIF and more.
Crop Image
Crop images to custom size or aspect ratio. Perfect for social media and websites.
Resize Image
Resize images by pixels, percentage or ratio. Maintain quality while changing size.
Rotate & Flip Image
Rotate and flip images online. 90°, 180°, 270° rotation and horizontal/vertical flip.
Add Watermark
Add text or image watermark to protect your image copyright. Full control over watermark style and position.
Everyday File Tools, One Place
Free browser-based tools for compression, conversion, editing, and cleanup across the formats people use most, with no upload required.
100% Browser-Based
All processing happens locally in your browser. Your files never leave your device, so you can compress files without uploading them.
Batch-Friendly Workflows
Handle multiple files at once for compression, conversion, resizing, and other repetitive tasks in one private workflow.
Broad Format Support
Work with popular image, document, media, text, and archive formats without bouncing between different sites or uploading files to multiple services.
Smart Processing
Reduce file size, convert formats, or clean up assets with practical controls that balance quality, compatibility, and privacy.
Frequently Asked Questions
Is Let Compress free to use?
Yes, all tools on Let Compress are completely free with no registration required. There are no hidden fees, file limits, or watermarks.
Are my files safe and private?
Absolutely. All file processing happens directly in your browser using client-side technology. Your files are never uploaded to any server, ensuring complete privacy and security.
What file formats are supported?
Support varies by tool, but Let Compress covers popular image formats, PDFs, media files, archives, and text-processing workflows. Check the specific tool page for exact input and output support.
How much can I reduce my file size?
Results depend on the file type and content. Many images and documents can often be reduced by 30-90%, while other tools focus on compatibility, editing, or cleanup rather than maximum size reduction.
Do I need to install any software?
No installation needed. Let Compress works directly in your web browser on any device — desktop, tablet, or mobile. Just open and start optimising.
About Let Compress
Let Compress is a free online platform for compressing, converting, editing, and optimizing files in your browser. From images and PDFs to media, text, and archives, our tools are built to be fast, private, and easy to use with no uploads, no downloads, and no account sign-ups.