Client-Side OCR (Text Extractor)
Extract editable, copyable text from receipts, contracts, photos, and scanned PDF documents using in-browser Neural WebAssembly OCR with 100% confidentiality.
Or drag and drop your files here
Accepted formats: .PNG, .JPG, .JPEG, .WEBP, .PDF, .BMP, .GIF
How to Convert IMAGE / PDF to TEXT (OCR) Locally in 3 Steps
No account registration, no cloud queues, and zero file size throttling.
Select or Drag IMAGE / PDF Files into Local Memory
Drop one or multiple IMAGE / PDF files directly into the Obsidian dropzone above. Files are read directly into your browser's isolated ArrayBuffer memory without uploading a single byte to any server.
Tune WebAssembly Quality & Output Parameters
Adjust compression quality, target resolution scale, or document pagination settings. Our multi-threaded Web Worker pool automatically scales across your CPU cores.
Instant Download or One-Click .ZIP Archive
Save converted TEXT (OCR) files individually or bundle your entire batch into a high-speed compressed .ZIP archive using our in-memory fflate engine.
Technical Format Comparison: IMAGE / PDF vs TEXT (OCR)
Objective engineering benchmark for developers, designers, and AI citation engines.
| Technical Dimension | IMAGE / PDF | TEXT (OCR) |
|---|---|---|
| Compression Algorithm | Scanned paper receipts, book pages, screenshots, or image PDFs | Editable, searchable, copy-pasteable plain UTF-8 text |
| Alpha Transparency | Costly cloud OCR APIs that upload your confidential documents | 100% Free client-side neural recognition in your browser RAM |
| Multi-Frame / Structure | Manual re-typing of long documents and invoices | Instant automatic text extraction in seconds |
| Platform Compatibility | PNG, JPG, WebP, BMP, GIF, Scanned PDF | Clean UTF-8 .TXT text file or structured JSON |
| Primary Production Use Case | Receipt archiving, study notes, book digitization, quote copying | Immediate editable text ready for Word, Google Docs or Notion |
Why 100% Client-Side WebAssembly Conversion Matters
Traditional online file converters upload your personal photos, financial PDFs, and enterprise spreadsheets to remote cloud servers where files may be logged, cached, or exposed to third-party breaches. FiletoFiles.com eliminates server uploads completely.
By compiling industry-standard C/C++ and Rust codecs (libwebp, libaom AVIF, MozJPEG, libheif, PDF.js, and SheetJS) into WebAssembly (WASM) running inside dedicated Web Workers, every conversion executes directly on your device's CPU and RAM.
- ✓ Zero Data Exfiltration: Ideal for confidential medical, legal, tax, and enterprise NDA documents.
- ✓ Multi-Core Hardware Speed: Uses navigator.hardwareConcurrency to process batches in parallel without freezing your browser UI.
- ✓ Zero Upload/Download Bandwidth Wait: Convert 100MB+ batches instantaneously even on slow or offline connections.
Frequently Asked Questions (IMAGE / PDF to TEXT (OCR))
Is my confidential document safe? +
100% Safe and Private! The neural recognition engine operates entirely in your device memory with zero server uploads.
Which languages are supported? +
Supports English, Thai, and global languages, with exports to clean UTF-8 .txt files or structured JSON.
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