Let Compress

Make your file smaller.

One workbench for every file-size task — exact targets, verified results, seamless next steps. 100% in your browser.

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

  1. 1

    Drop

    Add any file — nothing is uploaded

  2. 2

    Choose target

    A size limit or just "smaller"

  3. 3

    Compress

    Smart multi-round optimization

  4. 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.

Compress PDF to Target Size Compress Video by Size Limit

Job applications

Portfolios and resumes under the strict 100KB limits of application portals.

Compress PDF to 100KB Compress PDF to Target Size

Government & exam uploads

Meet official photo and document size requirements for forms and ID uploads.

Compress Image to Target Size Compress PDF to 200KB

Faster websites

Cut image weight and convert to modern formats for faster page loads.

Compress Image Image Format Converter

Messaging apps

Share videos that fit WhatsApp, Discord and chat size caps.

Compress Video for WhatsApp Compress MP4 to 10MB

Image

Compress, convert, and edit images. Support PNG, JPG, WebP, AVIF, GIF and more formats. 13 tools View All →
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

Document

Compress and manage PDF documents. Reduce file size while maintaining quality. 10 tools View All →
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

Media

Audio and video tools for compression, editing, extraction, and size reduction. Fast and secure. 20 tools View All →
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

Text

Text processing tools for encoding, formatting, and transformation. Fast and free. 8 tools View All →
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

Archive

Compress and extract archives. Support ZIP, RAR, 7Z, TAR and more formats. 16 tools View All →
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

Other

Additional useful tools for various needs. Explore more free utilities. 12 tools View All →
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. Before emailing a PDF, open the downloaded copy and check fine text at the intended viewing size. The tool can reduce image detail; its target size is not guaranteed. If forms, signatures or searchable text matter, keep the original PDF.

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?

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.

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.

Image

Compress, convert, and edit images. Support PNG, JPG, WebP, AVIF, GIF and more formats.

Document

Compress and manage PDF documents. Reduce file size while maintaining quality.

Media

Audio and video tools for compression, editing, extraction, and size reduction. Fast and secure.

Text

Text processing tools for encoding, formatting, and transformation. Fast and free.

Archive

Compress and extract archives. Support ZIP, RAR, 7Z, TAR and more formats.

Other

Additional useful tools for various needs. Explore more free utilities.