Character Counter - Online Letter & Symbol Frequency Tool
Deep-dive into text with detailed character and letter frequency analysis. Supports multiple languages and includes whitespace control. Fast and private.
UD5 Toolkit
Free online tool to count words, characters, sentences, paragraphs, and estimate reading time. Get keyword density analysis instantly.
| # | Keyword | Count | Density |
|---|---|---|---|
| Start typing to see keyword density analysis | |||
Deep-dive into text with detailed character and letter frequency analysis. Supports multiple languages and includes whitespace control. Fast and private.
See a live bar chart of character frequencies as you type or paste text. Great for cipher cracking and linguistics.
Paste two texts and see cosine and Jaccard similarity scores. Understand how close two documents are. All local math.
Paste text and detect its language (70+ languages) using a simple character n-gram model implemented in JavaScript. No server communication.
Generate customizable alphabet tracing sheets with uppercase and lowercase letters. Select letters to focus on. Instant print. Local only.
Convert any phrase into the NATO phonetic alphabet (Alpha, Bravo, Charlie…). Copy or hear pronunciation. Useful for call centers.
See how a full paragraph looks with your chosen text and background colors. Not just a ratio; the real appearance.
Check English spelling and get suggestions using the browser's built-in dictionary. Highlight errors instantly. No data leaves your machine.
Apply dyslexia‑friendly fonts, spacing, and background to any text. Preview and copy the formatted version. Improve readability.
Paste words with translations, shuffle, test yourself. Simple local spaced recognition.
Choose a font family and see how it renders famous pangrams (The quick brown fox…). Instant web font loader.
Paste word pairs (or load pre-made sets) and practice with randomized flashcards. Flip to reveal translation, mark as known/unknown. Local data, no login.
Click a letter and watch an animated stroke order for print or cursive. Good for kids learning to write.
Identify common grammar mistakes (subject-verb agreement, tense, articles) with simple rule-based analysis. Explanations provided. Not AI, purely rule-based and local.
Shows each character's 7‑bit or 8‑bit binary representation. Includes space separation. For learning binary encoding.
Convert plain text into leet (1337) speak and decode it back. Great for gamer tags and online culture. Fun, free, and local.
Generate a random first and last name typical for US, UK, or Australia. With optional middle initial. Useful for test data.
Enter initials (e.g., NASA) and get possible expansions. For creative naming or organizational jokes.
Sort hundreds of lines alphabetically, reverse alphabetically, or by length. Deduplicate option. All local.
Type a child's name and create a printable dotted trace sheet. Practice fine motor skills. Local only.
Transform regular text into the mocking SpongeBob‑style alternating case. Copy and paste for hilarious effect.
Enter any phrase and see it spelled letter by letter using the NATO phonetic alphabet. Copy ready for radio.
Convert standard Arabic numbers into formal Japanese/Kanji numerals (e.g., 123 → 百二十三). Also supports large numbers.
Normalize text to any Unicode normalization form to prevent encoding bugs and ensure consistent comparison. Essential for i18n developers.
Paste prose and reformat so that each sentence starts on a new line. Helps with version control diffs.
Type or paste Korean Hangul and see the revised romanization. Also works backwards for basic words. Study aid.
Create cards and review using a spaced repetition algorithm (Leitner box simulation). Cards stored locally. Improve exam prep.
Upload multiple text files and concatenate them into one, with optional separators. No upload; processed instantly.
Type a simple sentence and get guided prompts to add who, what, where, when, why. Build richer sentences.
Test your knowledge of American Sign Language letters. See a sign and type the letter. Improve receptive skills. Local.