Shrink44 is a free, AI-assisted file optimization and compression platform that compresses images (JPG, PNG, WebP) and PDFs up to 90% smaller — entirely inside your browser. No uploads, no signup, no data retention.

Yes — Shrink44 is 100% free forever, with no premium tiers, no watermarks, and no signup required.

Is Shrink44 safe and private?

Yes. All compression, resizing and OCR runs locally in your browser using the Canvas API, PDF.js, and Tesseract.js. Your files never leave your device, never touch a server, and are never stored.

How much smaller can Shrink44 make my files?

Typical results: JPG up to 80% smaller, PNG 50-70% smaller, WebP 60-90% smaller, PDF 40-85% smaller. You can also target an exact KB or MB size using iterative compression.

Can I bulk-compress hundreds or thousands of files?

Yes — the Bulk tab handles 1000+ images via smart 8-file batching so your browser stays responsive, with a single ZIP download when finished.

Does Shrink44 work offline?

Yes. After the first load, Shrink44 caches its assets as a Progressive Web App so you can compress files offline.

What file formats does Shrink44 support?

Input: JPG, JPEG, PNG, WebP, GIF, BMP, TIFF, AVIF (browser-dependent), and PDF. Output: JPG, PNG, WebP, and PDF.

Shrink44 – Free File Compressor & Optimizer | Compress JPG, PNG, PDF, WebP Online

Install Shrink44

Add to your home screen for instant access — works offline for compress & resize

iPhone & iPad

Open in Safari · Tap Share → "Add to Home Screen"

Android

Chrome · Tap menu → "Add to Home Screen"

Desktop

Chrome / Edge · Click install icon in address bar

What is Shrink44?

TL;DR: Shrink44 is a free, AI-assisted file optimization and smart compression platform that compresses images and PDFs up to 90% smaller, resizes to 4K, and runs entirely inside your browser — no uploads, no signup, no data retention.

Shrink44 is an online file compressor and document optimization workspace built for fast, private file size reduction. It supports JPG, PNG, WebP, GIF, BMP, and PDF input, with output to JPG, PNG, WebP, or PDF. All compression, resizing, format conversion and OCR happens locally using the HTML5 Canvas API, PDF.js, Tesseract.js and jsPDF — so your files never touch a server.

Use Shrink44 to reduce file size for email attachments, faster website loading, lower cloud storage costs, WhatsApp / Instagram / LinkedIn uploads, and document sharing. Choose a quality level, set a target file size in KB or MB, or pick a 4K / Full HD / social-media resize preset — Shrink44 handles the rest with iterative binary-search compression.

File compression

Lossy and lossless compression for images and PDFs, with quality and target-size controls.

Image optimization

Resize, recompress, and convert JPG/PNG/WebP to reduce file size without visible quality loss.

PDF optimization

Re-render PDF pages at chosen DPI and quality for smaller, faster-sharing documents.

Bulk processing

Process 1000+ files in batches of 8 with a single ZIP download — no server queue.

OCR (Scan to Text)

Extract text from images using Tesseract.js, exporting to TXT, DOC, PDF or CSV.

Privacy-first

100% client-side processing. No uploads, no accounts, no tracking of your files.

Everything you need.
Nothing you don't.

Professional-grade image and PDF tools, free forever, running 100% in your browser.

Smart Compression

Canvas API compression up to 90% smaller. Target a specific KB or MB with iterative binary search — no guesswork.

PDF Compression

Re-render PDF pages at your chosen DPI and quality. Turn heavy PDFs into lightweight shareable files — fully client-side.

4K Resize

Resize to 4K (3840×2160), Full HD, or any custom dimension. Contain, cover, or stretch. 18 social presets built in.

Bulk 1000+ Files

Process entire folders at once. Smart 8-image batching keeps your browser responsive. Download all as a ZIP archive.

Scan → Text / PDF / Word

Tesseract.js OCR extracts text from photos, receipts, signs, or screenshots. Export to TXT, DOC, PDF, or CSV/Excel.

100% Private

Everything runs in your browser. No server uploads, no cloud storage, zero privacy risk. Works offline after first load.

Share Anywhere

Native device sharing, download as ZIP, copy link, or share directly to WhatsApp, Twitter, LinkedIn — one click.

Format Conversion

9 conversion routes: PNG→JPG, JPG→PNG, JPG→WebP, WebP→JPG, WebP→PNG, GIF→JPG, BMP→JPG and more. Set background colour, resize during conversion, bulk 1000+.

Common questions

What format conversions are supported?

Shrink44 supports 9 preset conversion routes — PNG→JPG, JPG→PNG, JPG→WebP, PNG→WebP, WebP→JPG, WebP→PNG, GIF→JPG, BMP→JPG — plus a custom mode where you pick any input and any output format. You can also set a background colour (for transparent PNG→JPG conversion) and optionally resize during conversion.

Is Shrink44 completely free?

Yes — 100% free forever. No hidden fees, no premium tiers, no watermarks. We sustain the service through non-intrusive advertising via Adsterra.

Are my images and PDFs safe?

Completely safe. All processing — compression, resizing, OCR, and PDF rendering — happens entirely inside your browser. Nothing is ever sent to a server. Your files never leave your device.

Can I compress to or from 4K resolution?

Yes. You can compress or resize to 4K (3840×2160px) or higher in the Compress and Resize tabs. The Canvas API renders at full resolution — there's no upscaling quality loss. High-resolution input files work the same way.

How does PDF compression work?

Shrink44 uses PDF.js to render each PDF page to a canvas, then re-encodes it as compressed JPEG at your chosen quality and DPI. The resulting pages are assembled into a new PDF with jsPDF. This is a rasterization approach — text becomes image pixels — ideal for reducing file size for sharing, not editing.

Can I bulk-compress 1000 images?

Yes! The Bulk tab supports 1000+ images via smart batching of 8 files at a time so your browser stays responsive. Download all results as a ZIP archive when done.

How do I share a compressed image?

Each result card has a Share button. On mobile it triggers native sharing (AirDrop, WhatsApp, etc.). On desktop it opens share options including clipboard copy, WhatsApp Web, Twitter, LinkedIn, and email.

What formats are supported?

Image input: JPG, PNG, WebP, GIF, BMP, TIFF, AVIF (browser-dependent). Output: JPG, PNG, WebP. PDF input and output supported in the PDF Compress tab. GIF animation frames are not preserved.

Shrink44 vs other file compressors

How a privacy-first, in-browser compressor stacks up against typical online tools.

Feature	Shrink44	TinyPNG / iLoveIMG	Smallpdf / ILovePDF
100% in-browser (no upload)	Yes	No	No
Free forever, no signup	Yes	Limited	Limited
Compress images & PDFs in one tool	Yes	Images only	PDFs only
Target file size (KB / MB)	Yes	No	Sometimes
4K resize presets	Yes	No	No
Bulk 1000+ files	Yes	20–50 limit	Limited
OCR scan to text	Yes	No	Paid
Works offline (PWA)	Yes	No	No
Files auto-deleted	Never uploaded	After 1h	After 1h

Install Shrink44

iPhone & iPad

Android

Desktop

Share your image

Compress, resize & share.Images, PDFs. All free.

Drop images to compress

Drop PDF files to compress

Drop images to resize

Bulk compress 1000+ images at once

Scan image → extract text

Drop images to convert

What is Shrink44?

File compression

Image optimization

PDF optimization

Bulk processing

OCR (Scan to Text)

Privacy-first

Everything you need.Nothing you don't.

Smart Compression

PDF Compression

4K Resize

Bulk 1000+ Files

Scan → Text / PDF / Word

100% Private

Share Anywhere

Format Conversion

Resize for any platform

WhatsApp Profile

WhatsApp Status

Instagram Post

Instagram Story

LinkedIn Post

LinkedIn Cover

Twitter / X Post

YouTube Thumb

Facebook Post

TikTok

4K Landscape

4K Portrait

Common questions

Shrink44 vs other file compressors

Explore all Shrink44 tools

Compress PDF

Compress Image

Compress JPG

Compress PNG

Compress WebP

Resize Image

Bulk Compress

Scan to Text

Convert Image

Reduce File Size

How to compress PDF

Reduce image size — no quality loss

Install Shrink44 as an App

iPhone & iPad

Android

Desktop

Compress, resize & share.
Images, PDFs. All free.

Everything you need.
Nothing you don't.