New: 5 Developer Tools — JSON ⇄ YAML, SQL Formatter & More (100% Local)
Free Privacy-focused — Local File Processing
Convert anything.
Upload nothing.
47 free local tools that run inside your browser. No sign-up, no file uploads, no server round-trips — just a fast, private toolbox.
Popular right now
100% local
Files are processed inside your browser. We don't receive the file contents for conversion.
No sign-up
No account, no email, and no payment card. Start using any tool the moment it loads.
Instant
No queue and no waiting on a server. Processing runs on your device as fast as it can.
How it works
Three steps. Zero surprises.
Drop your file
Choose a tool and add your file, or paste text. Nothing is sent for conversion.
We process locally
The work runs in your browser using your device's own resources.
Download & go
Grab the finished result. It stays on your device — we don't keep a copy.
Popular File Conversions
High Speed ShortcutsChoose a conversion-specific shortcut for format details, privacy information, and instant client-side processing.
47 Free Client-Side Guides for PDF, Images, Office & Developer Tools
Learn how each lightweight client-side module manages, converts, and formats documents, spreadsheets, design assets, and code snippets inside your browser without uploading file contents for conversion.
2 Create & Convert to PDF Guides
12 Edit & Manage PDF Guides
3 Convert PDF to Other Formats Guides
11 Image Conversion & Editing Guides
4 Data & Document Conversion Guides
15 Text & Developer Utilities Guides
Zero uploads. Zero accounts. Zero tracking of file contents.
Supported tools run with client-side JavaScript and browser APIs. We don't require an account, and file contents are not sent to WeConvertFiles for conversion. See exactly what the site does — and doesn't — collect.
Developer Tools
Code Diff Checker
Compare two text or code snippets side-by-side with inline differences highlighted.
Drop files here
Selected files
Drag thumbnails to reorder, click ↺ to rotate, or click 🗑 to remove pages:
Tool notes
How Code Diff Checker works
Compare two text or code snippets side-by-side with inline differences highlighted. The supported processing runs locally in your browser.
Frequently Asked Questions
🔒 Client-Side File Processing Notice
Supported file conversions run locally inside your browser. File contents are not sent to WeConvertFiles for conversion. With consent, Zoho PageSense may collect usage information such as page visits, clicks, and conversion events; it does not receive file contents through our integration. See our Privacy Policy for details.