Bulk media compression for
Mac.Zero cloud uploads.
Shrink massive batches of directly on your device. Up to 90% size reduction with zero quality loss — completely offline and secure.
macOS, Windows, & Linux•Download free app (Mac & Windows)•14-Day Money-Back Guarantee
Get the Desktop App Link
Enter your email and we'll send you the download link — open it on your Mac or PC.
We'll send the link and a demo video. That's it.
Multi-Core Parallel Engine
Spreads encoding tasks across all CPU and GPU cores for instant batch turnaround.
Zero-Upload Security
Everything runs locally in system memory. Confidential files never touch the cloud.
Folder Auto-Watch
Monitors designated folders to automatically compress and optimize new exports.
54,500 Images
36.76 GB
16.55 GB
20.21 GB (-55%)
Desktop power.
Zero cloud uploads. Zero limits.
See how FastCompressor handles massive batches, exact target limits, video clipping, and background workflows.
Compress entire folders in a single pass
Drop entire folders of photos, 4K videos, and documents. FastCompressor processes thousands of files locally in parallel using all your CPU and GPU power — zero memory bloat, zero freezes, and zero browser tab crashes.
Never get “File is too large” errors again
Hit exact file size limits with 1 click. Choose a target size (like <25 MB for Discord or <10 MB for email), and FastCompressor automatically calculates the optimal compression to keep your file safely under the limit without guesswork.
Trim video clips & strip audio before compressing
Cut out unwanted footage, trim start/end points, and downscale 4K footage in a single unified step without opening heavy video editing software.
Inspect quality side-by-side before saving
Pixel-level fidelity without compromise. See before and after quality in real time with side-by-side comparison on photos and 4K video clips.
Compress without ever switching windows
Drag files onto the always-on-top floating pill or press a global shortcut to compress copied clipboard images directly from your workflow.
Automatic background folder watching
Set it and forget it. Designate your Downloads or OBS Recordings folder, and FastCompressor silently compresses every new file the instant it is created.
Explore all desktop superpowers
Deep dive into our In-App Video Trimmer, Floating Dropzone, folder automations, and presets.
Looks identical. 78% smaller.
Drag the slider to compare the original file with the compressed version. Can you spot the difference?
Built for people who hate waiting.
Photographers, developers, and ecommerce teams use FastCompressor to handle bulk image work locally — fast, private, unlimited.
Photographers
Export client galleries without the wait.
Batch compress hundreds of RAW exports to delivery-ready JPG or WebP in minutes — no upload queues, no file size caps, no cloud.
Ecommerce Teams
Faster product pages, more conversions.
Crush thousands of product images to optimal sizes in one pass. Smaller images mean faster stores — and faster stores sell more.
Developers
Optimize assets without leaving your desk.
Convert entire asset folders to next-gen AVIF or WebP, strip EXIF metadata, and plug compression into your local build pipeline.
Designers
Prep for handoff in one click.
Export polished, web-ready assets from Figma or Photoshop — preserving alpha transparency, colour accuracy, and crisp edges.
Marketing Teams
Every platform. Every format. Instantly.
Resize and compress for Instagram, X, LinkedIn, and beyond — fully offline, private, with one-click platform presets.
Actively maintained
Shipped regularly. Every release makes the engine faster or smarter.
v3.1.0 - Universal macOS Build, Floating Dropzone & Performance Engine
1 day agov3.0.0 - Multi-Core Offline Engine, Faster Batch Processing & Stability
2 weeks agov2.0.9 - Cloud Files Support & Stability Improvements
2 weeks agov2.0.8 - Smart Optimization & Bug Fixes
3 weeks agov2.0.7 - Metadata Preservation & Stability Fixes
3 weeks agov2.0.6 - Bug Fixes & Improvements
1 month agoDesktop vs browser tools
Browser tools are a workaround.
This is the real thing.
Free online tools are built for convenience — a quick compress before you email something. Once you need privacy, volume, or any kind of automation, they immediately show their limits.
Your files never leave your machine.
Every browser tool uploads your images to someone else's server. FastCompressor runs entirely offline — no cloud, no risk.
No file size caps. No daily limits.
TinyPNG stops at 5 MB. Squoosh handles one file at a time. FastCompressor doesn't care if you drop 10,000 files at once.
Batch entire folders in seconds.
Browser tools are built for one-offs. FastCompressor is built for production — drop a folder, set your target, walk away.
Native speed. Not browser speed.
Running compression in a browser tab is slow by design. A native engine with hardware acceleration is a different class of tool.
Pay once.
Compress forever.
Stop paying recurring subscriptions for basic utilities. Get unlimited, 100% private batch compression that runs entirely on your machine.
Free Forever
StarterGenuinely free — no watermark, no time limit, no cloud upload.
- Up to 20 files per sessionGreat for quick one-off tasks
- Basic image formatsJPG, PNG, WebP support
- 100% private local processingZero files ever uploaded
- Standard quality compressionSmart visual optimization
FastCompressor Pro
Lifetime license. Pay once, use forever on all your machines.
- Unlimited bulk filesImages, 4K videos & PDFs
- Target File Size engineDiscord <25MB, Email <10MB
- Background Folder WatchAuto-compress Downloads
- In-App Video TrimmerCut clips & strip audio
- Floating Dropzone widgetQuick clipboard compression
- GPU hardware accelerationMaximum export speeds
- Side-by-side quality diffLive preview & lossless mode
- Batch metadata removalStrip sensitive photo info
- Use on up to 3 devicesMac, Windows & Linux
- Lifetime priority updatesZero monthly subscriptions
Buying from your computer?
Enter your email and we'll send you the download link — open it on your Mac or PC.
We'll send the link and a demo video. That's it.
Loved by 340+ creators, designers, and developers
Frequently Asked Questions
Answers to the most common questions about our tool
Is it really private?
Yes. FastCompressor performs all operations on your local CPU/GPU. It processes everything locally on your device. Your images never leave your machine.
Why use this over online tools?
Online tools are slow, limit file sizes, and pose a privacy risk. FastCompressor is built for bulk workflows—compressing hundreds or thousands of assets instantly without waiting for any server.
What happens after the free limit?
You can continue using the app for free! You'll just be limited to 20 files per session. To unlock unlimited bulk processing a one-time upgrade is available.
Does it support batch processing?
Yes! You can drag and drop multiple images or entire folders for simultaneous processing, saving you time and effort.
How do I compress a TIFF file without losing quality?
FastCompressor uses lossless LZW and Zip-based compression to reduce TIFF file size without any data loss. Simply open the app or use the online TIFF compressor, drop your .tif files, and download the optimized TIFF — the format stays the same and every pixel is preserved.
Does FastCompressor work offline on Mac, Windows, and Linux?
Yes! FastCompressor is a fully offline image compressor. Download the free desktop app for macOS, Windows 10/11, or Linux. All compression happens locally on your machine — no internet connection required and your files never leave your device.
You've been sending client files to strangers' servers. Stop.
FastCompressor keeps everything on your machine - your files never leave your computer. And it costs less than lunch. Price: $19, once, forever.
Instant download · macOS, Windows & Linux