Built for privacy. Useful without an account.

Many file utilities start by asking for a document. ZANCTA starts with a narrower question: can a supported task happen in the browser on the device that already holds the file? When it can, that is where the work should stay.

The result is a collection of focused utilities for routine PDF and image work: clear inputs, visible limits, local output, and no invented success state when a task cannot be completed.

The current workspace includes PDF merge, split, compression, page rendering, visual page organization, PDF metadata cleaning, image-to-PDF, image compression, conversion, resizing, HEIC conversion, metadata cleaning, local background removal, local English OCR, text extraction from text-native PDFs, file checksums, and QR code generation.

For supported local tools, selected file bytes are processed in the browser and are not uploaded to ZANCTA for processing. That is a specific product boundary, not a claim that a device, browser extension, backup service, or future opt-in feature is risk-free.

Good utility software should make its limits legible. ZANCTA shows supported formats, size limits, progress where an engine can report it, and honest error states. The visual system is deliberately restrained so the task, not the interface, remains in focus.

ZANCTA is independently operated privacy-first document software. Supported tools process selected files in the browser. Support, privacy, security, and billing contacts are on Contact. Product terms and privacy practices are on Terms and Privacy.