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Choose a focused tool
Search the toolkit by task or category, then open the exact utility you need without navigating through a maze of settings.
Fast, Secure, Works in your browser. Complete client-side utilities with zero file uploads and zero server tracking.
Generate cryptographically secure random passwords with customizable length, symbols, numbers, and strength indicator.
Compute MD5, SHA-1, SHA-256, and SHA-512 cryptographic checksums instantly for plain text or local files.
Encode or decode text into Base64 format and convert image files directly into Base64 data strings.
Create custom QR codes for plain text, website URLs, and WiFi network setups with downloadable PNG outputs.
Reduce JPEG, PNG, and WebP file sizes with an interactive quality slider and real-time before/after comparison.
Combine multiple PDF files into a single document with drag-and-drop page ordering directly in your browser.
Protect files with password-authenticated AES-256-GCM encryption and PBKDF2 (250,000 iterations).
Every tool follows the same quiet workflow: choose a task, work locally, and keep the result under your control.
Search the toolkit by task or category, then open the exact utility you need without navigating through a maze of settings.
Files, text, passwords, and QR payloads are handled by browser APIs on your device instead of being sent to a backend.
Save the finished output locally, clear the page when you are done, and leave no account or cloud workspace behind.
Cipher tools process all data directly inside your web browser. No server uploads, no cloud logs, and no privacy compromises.
Your files and credentials never pass over a network connection. All computations use standard Web APIs locally.
Experience lightning-fast processing powered directly by your device's CPU and memory without network latency.
Cipher utilizes Progressive Web App (PWA) caching so you can use all security tools even when completely offline.
Cipher keeps practical security tasks close at hand, whether you are preparing a document, checking a download, or sharing a connection.
Encrypt a file before it leaves your device.
Generate a hash and compare it with confidence.
Create a clean QR code for a link, message, or WiFi network.
Compress images or merge PDFs without uploading them.
The short version of how Cipher handles your data and your workflow.
Open a tool, work locally, and keep the final result on your own machine.