About FileToolkit

Private. Fast. Free. No file uploads.

Our Mission

FileToolkit was created to solve a simple problem: preparing images for upload requirements without sacrificing privacy or paying for tools.

Whether you're a student submitting a 100 KB photo for a university application, a job seeker compressing a CV photo, a developer optimizing images for a website, or a small business owner resizing product photos — you shouldn't need to upload your files to unknown servers, create accounts, or pay subscriptions.

Every tool in FileToolkit runs entirely in your browser. Your images never leave your device. No tracking. No analytics. No cookies. Completely free.

Core Principles

Privacy First

Zero uploads, zero tracking, zero data collection by design.

Performance

Instant local processing. No server queue. Works offline.

Free Forever

No subscriptions, no limits, no watermarks, no upsells.

Technology Stack

Frontend

  • Next.js 15 (App Router)
  • React 19
  • TypeScript
  • Tailwind CSS v4

Deployment

  • Cloudflare Pages
  • Static HTML Export
  • Edge CDN
  • Free SSL

APIs

  • HTML5 Canvas API
  • File API
  • Blob API
  • URL API

Standards

  • WCAG 2.1 AA
  • Semantic HTML
  • SEO Optimized
  • PWA Ready

Current Tools

1Image Compressor — Target file size in KB with binary search optimization
2Image Resizer — Exact dimensions with aspect ratio lock and presets
3Image Converter — JPEG, WebP, PNG conversion with quality control

Roadmap

Planned improvements (not guaranteed, no timeline):

  • Batch processing for multiple images
  • More format support (AVIF, HEIC output)
  • PDF to image and image to PDF tools
  • Multilingual interface
  • Progressive Web App installation
  • Command-line version for developers

Acknowledgments

FileToolkit is built on the shoulders of giants:

License

FileToolkit is open source under the MIT License. You are free to use, modify, and distribute it.