Developer Text Toolkit
Instant ProcessingConvert variable cases, encode and decode payloads, deduplicate lines, and clean developer text strings locally.
📊 Input Text Analytics & Character Metrics
Live Character & Line CounterAbout Developer Text Tools & String Utilities
Writing and refactoring code often requires converting identifier naming conventions, encoding payloads for HTTP transmission, and sanitizing raw string data. The Developer Text Toolkit provides instant, offline-ready transformations for case conversions, Base64 encoding/decoding, URL encoding, HTML entity escaping, and multi-line deduplication.
🔤 Case Converter
Instantly switch variables between camelCase, snake_case, PascalCase, kebab-case, CONSTANT_CASE, Title Case, and dot.notation across JavaScript, Python, Dart, Kotlin, and Rust idioms.
🔒 Base64 & URL Encoder/Decoder
Reliable Base64 encoding and decoding with full UTF-8 Unicode support, alongside standard RFC 3986 URL percent-encoding and HTML entity escaping for web safety.
🧹 Line Hygiene & Utilities
Clean up raw logs and lists: deduplicate lines, sort alphabetically or by length, strip empty rows, trim whitespace, and calculate word, character, and byte metrics.
Frequently Asked Questions
Are my text inputs or tokens stored or uploaded?
No. All string manipulation, Base64 conversion, and regex sanitization run 100% locally in your browser. No data ever leaves your device, making it safe for authentication secrets, base64 certificates, and proprietary data.
Does the Base64 tool support non-ASCII Unicode characters and emojis?
Yes. Standard browser btoa() throws an exception when encountering characters outside the Latin1 range. This toolkit uses modern TextEncoder and TextDecoder Web APIs to correctly encode and decode UTF-8 byte streams, safely preserving emojis and international scripts.
What is the difference between encodeURI and encodeURIComponent?
encodeURI is intended for complete URLs and preserves protocol separators like colons, slashes, and question marks. encodeURIComponent encodes all reserved characters, making it suitable for individual query parameter values to prevent URL parameter injection.