Tools
31+ free online writing and developer tools
Clean text, count words, format data, encode values and generate useful outputs directly in your browser.
Writing
Word Counter
Count words, characters, sentences, paragraphs and estimated reading time.
🔣Character Counter
Count characters with and without spaces, lines and Unicode-aware length.
AaCase Converter
Convert text to uppercase, lowercase, title case, sentence case or alternating case.
☷Line Counter
Count total, non-empty and unique lines in text.
⏱️Reading Time Calculator
Estimate reading and speaking time from a piece of text.
📊Keyword Density Checker
Find repeated words and calculate keyword frequency percentages.
🔗SEO Slug Generator
Create a clean lowercase URL slug from a title or phrase.
¶Lorem Ipsum Generator
Generate placeholder paragraphs for layouts and prototypes.
Text Cleanup
Remove Duplicate Lines
Remove repeated lines while preserving the first occurrence.
↕Remove Blank Lines
Delete empty lines and tighten pasted text.
␠Whitespace Cleaner
Normalize extra spaces, tabs and repeated blank lines.
↕️Sort Lines
Sort lines alphabetically, naturally or in reverse order.
⇅Reverse Line Order
Reverse the order of lines in a list.
↩Reverse Text
Reverse characters in a piece of text.
🔎Find and Replace
Replace text globally with plain or case-sensitive matching.
≠Text Difference Checker
Compare two texts line by line and highlight additions and removals.
Developer
JSON Formatter & Validator
Validate and pretty-print JSON in the browser.
{·}JSON Minifier
Validate JSON and remove unnecessary whitespace.
▦CSV to JSON Converter
Convert comma-separated data into JSON objects.
⇄JSON to CSV Converter
Convert an array of JSON objects into CSV.
64Base64 Encoder / Decoder
Encode plain text to Base64 or decode Base64 to text.
%URL Encoder / Decoder
Encode or decode URL components safely in the browser.
<>HTML Encoder / Decoder
Escape HTML special characters or decode HTML entities.
.*Regex Tester
Test a JavaScript regular expression and inspect all matches.
M↓Markdown Preview
Preview safe basic Markdown headings, lists, links and emphasis.
Generators
Converters
Privacy-aware browser utilities
These utilities process input in your browser. Avoid pasting passwords, private keys or confidential records into any web tool, and verify important converted data before using it in production.
Related BiNotePads tools
Online Notepad, Text to PDF and the Smart Summarizer are also available.