Free Text Tools Online

Text tools that run on your computer — count words, convert case, compare differences, read text aloud. Nothing uploads. Works on bad wifi or no wifi.

Transform, count, compare, and manipulate text without pasting it into a remote service. Word and character counters, case converters, diff checkers, find-and-replace, text-to-speech, fancy font generators, and anagram makers all run in the browser with no data leaving your tab. Useful for writers checking word counts before submission, developers comparing config files, and students needing a quick case transformation. Every result is instant — no round-trip latency. Browse the text tool collection below.

Analyze

Word Counter

Count words, characters, sentences, and paragraphs — right in your browser. Estimate reading and speaking time.

Text Diff

Compare two blocks of text and see the differences highlighted — right in your browser. Side-by-side and inline diff views.

Transform

Case Converter

Convert text between UPPERCASE, lowercase, Title Case, Sentence case, and more — right in your browser.

Find and Replace

Find and replace text with support for regex, case sensitivity, and whole word matching — right in your browser.

Text to Speech

Convert text to speech using your browser's built-in voices — no upload needed. Adjust speed, pitch, and voice selection.

Text to Handwriting

Convert typed text into handwriting-style images — right in your browser. Customize ink color, font size, and paper style.

Fancy Font Generator

Type text and see it in 20+ stylish Unicode fonts — right in your browser. Copy fancy text for Instagram, Twitter, and more.

Preview

Markdown Preview

Write Markdown and see a live rendered preview side by side — right in your browser. Copy the generated HTML with one click.

Play

Anagram Maker

Find all anagrams of any word or phrase — right in your browser. Pure computation, no AI.

Track

Habit Tracker

Track daily habits with a simple weekly grid — right in your browser. See streaks, toggle completions, and stay consistent.

Frequently asked questions

Does the text I paste get stored anywhere?: No. Text you enter into any OnDevice tool is processed in browser memory and discarded when you close or reload the tab. Nothing is sent to a server or saved to a database.
How does text-to-speech work offline?: Text to Speech uses the Web Speech API built into your browser. On Chrome and Edge, voices are local to your OS. Quality and available languages depend on your installed system voices.
Can I compare two large documents with the diff tool?: Yes. The diff tool runs the Myers diff algorithm in the browser and handles documents of several hundred thousand characters without performance issues.