Image
Compress, convert, and edit images in your browser. Support PNG, JPG, WebP, AVIF, GIF and more formats without uploading files.
Free online file compressor
Make images, PDF, video and audio smaller in your browser. Choose your settings, compare the result and download.
Drop a file here
or click to browse — images, PDFs, videos, audio, archives. Files never leave your device.
What do you need?
79 Free Tools
6 Categories
How it works
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1
Drop
Add any file — nothing is uploaded
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2
Choose target
A size limit or just "smaller"
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3
Compress
Smart multi-round optimization
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4
Download
Plus next steps to keep going
−92%
One workbench, not 120 scattered tools
Every tool shares the same flow — set a target, compress, verify the result, then continue to the next step.
Exact size targets
Type the limit you need — 100KB for a form, 2MB for an email — and the workbench hits it, file by file.
Results you can verify
Every job ends with a report: before, after, reduction, and whether each file met its target.
A workflow, not dead ends
Finished compressing? The report suggests what to do next — resize, convert — so you stay in one place.
Every file type, one place
Images, PDFs, video, audio, archives and documents — all 120 tools under one consistent system.
Built around one job: hitting your size limit
Six flagship tools cover the whole workflow — from making files smaller to hitting an exact target size.
Reach an exact image size
Compress Image to Target Size
Compress images to 50KB, 100KB, 200KB, or any custom target size directly in your browser with no upload required.
Reach an exact PDF size
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.
Fit platform video limits
Compress Video by Size Limit
Compress videos to 8MB, 10MB, 25MB, 50MB, or any custom size target in your browser with no upload required.
Batch compress many images
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.
Shrink JPGs, keep quality
Compress JPG
Compress JPG/JPEG images without losing quality. Reduce file size instantly.
Maximum PDF reduction
Compress PDF
Pages become JPEG images. Selectable text, links, forms and digital signatures are not preserved.
Common jobs we get files fit for
Pick your situation — the right workflow is one click away.
Email attachments
Fit PDFs and videos under attachment limits before you hit send.
Job applications
Portfolios and resumes under the strict 100KB limits of application portals.
Government & exam uploads
Meet official photo and document size requirements for forms and ID uploads.
Faster websites
Cut image weight and convert to modern formats for faster page loads.
Messaging apps
Share videos that fit WhatsApp, Discord and chat size caps.
Compress 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.
See 7 more
Compress PDF
Pages become JPEG images. Selectable text, links, forms and digital signatures are not preserved.
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 PDF to 100KB
Compress PDF to under 100KB in your browser for exam forms, job applications and government portals. Free, private, no upload.
Compress PDF to 200KB
Compress PDF to under 200KB in your browser for online forms, applications and portal upload limits. Free, private, no upload.
JPG to PDF
Convert JPG and JPEG images into a single PDF directly in your browser. Reorder photos, choose page settings, and keep everything on your device.
Image to PDF
Convert JPG, PNG, WebP, GIF, and BMP images into a PDF in your browser. Merge multiple images into one PDF without uploading files.
See 4 more
Compress 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
Compress MP4, WebM, MOV and more video formats directly in your browser. Reduce file size for email, chat apps and web uploads — free, no upload.
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 MP4 to 500MB
Compress MP4 and other videos to under 500MB directly in your browser for email, cloud drives and platform upload limits.
Compress MP4 to 10MB
Compress MP4 and other videos to under 10MB in your browser for Discord free-tier uploads and messaging apps. Free, private, no upload.
See 14 more
Compress JSON
Minify JSON online in your browser. Remove whitespace from JSON data for smaller payloads, API responses, and production files.
JSON Formatter
Format and beautify JSON in your browser. Pretty-print JSON with adjustable indentation, copy the output, and download the cleaned result.
JSON Validator
Validate JSON in your browser and see line and column errors when parsing fails. When valid, review a formatted JSON preview instantly.
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.
See 2 more
Compress 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.
See 10 more
HEIC 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.
See 6 more
Choose a file compressor that fits your file
Compression methods have different trade-offs. Start with the file type, then compare the downloaded size and quality.
Compress images
Adjust image quality or dimensions. Lossy output can change fine detail; preview text and edges before using it.
Compress PDF
This PDF compressor renders pages as JPEG images. Selectable text, links, forms and digital signatures are not preserved.
Compress video
Re-encode with a lower bitrate or resolution. Check playback, sound and the final size; a strict target may need further adjustments.
Compress audio
Lower bitrate reduces size with a possible loss of detail. Re-encoding already compressed audio can also make it larger.
Create a ZIP archive
Bundle files without changing their contents. JPEG, MP4 and other compressed files may shrink very little in a ZIP.
There is no guaranteed saving or exact target for every file. If the result is larger, some tools return the original; compare its format and size before sharing.
Everyday File Tools, One Place
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?
The tools are free to use without registration. Supported formats and practical file limits vary with the tool, browser and available memory.
Are my files safe and private?
File processing takes place on your device rather than uploading files to our servers. Pages can load processing libraries, ads and analytics over the network; browser-based processing does not guarantee that every file or browser is safe.
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?
Savings depend on the input, format and settings. Already compressed files may shrink very little or become larger. Compare the actual downloaded size and quality; a fixed percentage or exact target is not guaranteed.
Do I need to install any software?
No software installation is needed. Browser capabilities and device memory vary; large media files and unsupported codecs may require a different browser or a desktop application.
Browse by task
Let Compress is a free online platform for compressing, converting, editing, and optimizing files in your browser. Work with images, PDFs, media, text, and archives using fast, private tools with no downloads, uploads, or account sign-ups.
Document
Compress and manage PDF documents in your browser. Reduce file size while keeping files on your device.
Media
Audio and video tools for compression, editing, extraction, and size reduction with private browser-based processing.
Text
Text processing tools for encoding, formatting, and transformation that run directly in your browser.
Archive
Compress and extract archives in your browser. Support ZIP, RAR, 7Z, TAR and more formats without uploading files.
Other
Additional useful tools for various needs. Explore more free utilities.