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Handle client files confidently. Merge contracts, compress deliverables, and convert data — all without uploading sensitive work to third-party servers.
“Uploading client contracts to unknown servers”
“Paying monthly subscriptions for occasional PDF tasks”
“File size limits when emailing deliverables to clients”
“Switching between multiple tools for simple tasks”
Problem
“Need to merge client contracts into one PDF”
Solution
Combine PDFs locally — files never leave your browser.
Try it freeProblem
“Deliverable images are too large to email”
Solution
Compress JPG/PNG to exact size targets.
Try it freeProblem
“Client sends JSON but spreadsheet needs CSV”
Solution
Convert JSON to CSV (and back) in one click.
Try it freeProblem
“Need a secure password for client accounts”
Solution
Generate cryptographically strong passwords locally.
Try it freeStaple multiple PDF documents into one master file in seconds. Drag-and-drop to reorder pages and combine reports with zero quality loss.
Shrink image file sizes by up to 95% without compromising visual fidelity. I engineered this tool to perform high-performance quantization on Windows, Mac, or Linux directly within your browser. By utilizing the V8 engine and hardware-accelerated Canvas APIs, FileMint strips unnecessary metadata (EXIF/GPS) and optimizes the underlying pixel buffer stream. This zero-server-upload architecture ensures that your private photos and sensitive documents never traverse the network, eliminating latency and maximizing security. Achieve perfect web optimization for JPG, PNG, and WebP formats instantly with our local compression engine.
Change the dimensions of any picture. Perfect for fitting that weird social media aspect ratio.
Instant, uncrackable passwords using the same standards as big banks. Customize length, symbols, and complexity for ultimate online security.
Convert JSON into clean CSV with nested flattening, column controls, and spreadsheet-ready output options.
Client files never leave your device — true confidentiality
No subscription needed — completely free
Works offline after first load — use anywhere
All tools in one place — no tab juggling
Files stay on your device
Free forever, no hidden fees
No signup required
Works offline as a PWA
Merging contracts and invoices into single PDFs
Compressing portfolio images for email delivery
Converting between data formats for reports
Generating secure passwords for client projects
Resizing images for social media deliverables
Yes. FileMint is 100% free with no daily limits, no file size caps, and no paid plan. All 40+ tools work unlimited.
No. Every operation runs locally in your browser using WebAssembly. Your files never leave your device — no data collection, no cloud storage.
No. FileMint requires no signup, no email, and no credit card. Just open a tool and start working.
Yes. FileMint is a Progressive Web App. After your first visit, you can install it and use all tools even without internet access.
Join thousands of freelancers who already use FileMint for everyday file tasks. No signup. No limits.
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