Developer & Text Guides
Step-by-step guides for image, PDF, developer, text, random, and productivity tools.
Practical Guide to Creating Reliable QR Codes
Turn a URL or text into a QR code, set its size and margin, and download a PNG.
How Long Should a Strong Password Be?
Generate strong passwords with browser cryptographic randomness and selectable character sets.
JSON Formatting and Common Syntax Errors
Format, minify and validate JSON, identify syntax errors, and copy the result.
What Is Base64? Encoding, Decoding, and Encryption
Base64 Encoder / Decoder: A browser-based development and data utility with copyable or downloadable output.
Unix Timestamps, Milliseconds, and Time Zones
Unix Timestamp Converter: A browser-based development and data utility with copyable or downloadable output.
Common Regular Expression Examples and Testing
Regex Tester: A browser-based development and data utility with copyable or downloadable output.
Why Character and Word Counts Differ by Language
Word & Character Counter: Process text locally in your browser without intentionally sending the input to a server.