Local File Converter Chrome Extension: Images, Audio, Documents — No Upload
Most online converters take your file, send it to a server, process it there, and return a result. Your photo, document, or spreadsheet lives briefly on someone else's infrastructure. ConvertForge converts files entirely inside your browser — nothing leaves your machine.
What ConvertForge Converts
ConvertForge is a universal conversion router with a drag-and-drop interface. Drop a file and it detects the type automatically:
- Images — HEIC from iPhones and other image formats, converted locally without a cloud service
- Audio — Extract audio from video files or convert between audio formats
- Documents — Local OCR using Tesseract, extracting text from PDFs and images on-device
- Data — Convert between JSON, CSV, YAML, and XLSX for data pipelines or spreadsheet imports
How to Convert a File Locally
- Install ConvertForge from the ConvertForge page — no account, no sign-up
- Click the ConvertForge icon in your Chrome toolbar to open it as a local panel
- Drag and drop your file onto the universal router
- ConvertForge detects the file type and shows available output formats
- Select the target format and convert — the file downloads directly to your device
All processing uses browser-native APIs: Tesseract for OCR, WebAssembly for audio and image processing.
Local vs. Cloud: What Changes
| Feature | Cloud converter | ConvertForge |
|---|---|---|
| File leaves your machine | Yes | No |
| Works offline | No | Yes |
| File size limits | Often (10–25 MB) | None (RAM-bound) |
| Account required | Usually | No |
| Works from browser | Yes | Yes |
If you handle photos with EXIF location data, documents with personal information, or proprietary data files, the difference between cloud and local is not just convenience — it's a privacy boundary.
Frequently Asked Questions
Does ConvertForge upload my files to any server? No. ConvertForge runs entirely in your browser using browser APIs and WebAssembly. Nothing is uploaded to Wendygo Studio's servers or any third party.
Does it work offline? Yes. Because processing is local, ConvertForge works fully offline once installed — on a plane, with no Wi-Fi, or on a machine with restricted network access.
Is it free? ConvertForge has a free tier with no account required. Visit the ConvertForge page for current pricing.
How is it different from online converters? Online converters upload your file to a remote server and process it there. ConvertForge does all of this in your own browser — your file never leaves your machine.