Free Online Developer, Text & Data Tools
Use our free online developer, text, and data tools to process single inputs or large multi-line lists.
Every utility runs locally in your browser memory to preserve exact formatting with zero server data storage.
Featured Text Tools
Word and Character Counter
Count words, characters, sentences, paragraphs, and reading time.
Text Replacer
Find and replace text, escape sequences, or RegEx patterns.
Whitespace Remover
Remove extra spaces, convert tabs, and clean blank lines.
Text Splitter
Split text into lines by delimiter, RegEx, or length.
Featured Data & List Tools
Email Extractor
Extract all valid email addresses from text or HTML.
Email Validator
Validate syntax and clean up to 100,000 emails per batch.
URL Extractor
Extract valid URLs from text, HTML, or Markdown.
Number Extractor
Extract integers, decimals, negative numbers, and digits from text.
Featured Decoding Tools
Base64 Decoder
Decode standard or URL-safe Base64 into plain UTF-8 text.
Bulk Base64 Decoder
Decode up to 100,000 Base64 lines in one run.
URL Decoder
Decode percent-encoded URLs and query strings into UTF-8 text.
Bulk URL Decoder
Decode up to 100,000 percent-encoded URL lines per batch.
Featured Encoding Tools
Base64 Encoder
Encode plain UTF-8 text into standard or URL-safe Base64.
Bulk Base64 Encoder
Encode up to 100,000 text lines into Base64 per run.
URL Encoder
Percent-encode URLs, query strings, and plain UTF-8 text.
Bulk URL Encoder
Percent-encode up to 100,000 URLs and query strings at once.
Featured Hash & Checksum Tools
MD5 Hash Generator
Generate a 128-bit MD5 hash from plain UTF-8 text.
SHA1 Hash Generator
Compute a 160-bit SHA1 hash from plain UTF-8 text.
Bulk MD5 Hash Generator
Generate MD5 hashes for up to 100,000 lines per batch.
Bulk SHA1 Hash Generator
Hash up to 100,000 lines into 160-bit SHA1 per run.
Featured Random Generator Tools
Random Number Generator
Generate up to 100,000 random integers or decimals per run.
Random Password Generator
Create up to 100,000 strong random passwords per batch.
Random String Generator
Create up to 100,000 custom random strings at once.
List Shuffler
Shuffle up to 100,000 list items in one run.