Tool directory
All tools
Browse every SolveKit utility. Each tool solves one real problem quickly, clearly, and without requiring an account.
Week Number Calculator
Find the ISO week number, day of year, and quarter for any date.
Date & TimeDate Add or Subtract Calculator
Add or subtract days, weeks, months, or years from a date.
Date & TimeWord Counter
Count words, characters, sentences, paragraphs, and reading time instantly.
TextCharacter Counter
Count characters with and without spaces, plus lines and bytes.
TextReading Time Calculator
Estimate reading and speaking time from a text or word count.
TextCase Converter
Convert text to upper, lower, title, sentence, camel, or kebab case.
TextSlug Generator
Turn a title into a clean, URL-safe SEO slug.
TextDuplicate Line Remover
Remove repeated lines while preserving their original order.
TextLine Sorter
Sort lines alphabetically, naturally, by length, or in reverse.
TextReverse Text
Reverse characters, words, or line order without sending text anywhere.
TextLorem Ipsum Generator
Generate placeholder paragraphs, sentences, or words for layouts.
TextText Diff Checker
Compare two texts line by line and highlight additions and removals.
TextMarkdown Editor
Write Markdown and preview safe formatted output side by side.
TextHTML Stripper
Remove HTML tags and decode common entities into clean text.
TextWhitespace Cleaner
Normalize spaces, tabs, blank lines, and line endings.
TextKeyword Density Checker
Measure how often a target keyword appears in a text.
TextAnagram Checker
Check whether two phrases are anagrams after normalization.
TextJSON Formatter
Format, minify, sort, and inspect JSON with clear parse errors.
DeveloperJSON Validator
Validate JSON syntax and pinpoint the first parsing error.
DeveloperRegex Tester
Test regular expressions, flags, matches, and capture groups live.
DeveloperBase64 Encoder
Encode Unicode text to Base64 locally in your browser.
DeveloperBase64 Decoder
Decode Base64 data into readable Unicode text.
DeveloperURL Encoder
Percent-encode text safely for query strings and URLs.
DeveloperURL Decoder
Decode percent-encoded URL components into readable text.
Developer