Developers write more than we admit: READMEs, docs, commit messages, release notes, blog posts, emails to stakeholders. Good writing tools help, but most want an account or upload your draft to a server.
We built the Writing & Editing category on Utility Tools Lab with 28 free tools that run in your browser. Here's a walkthrough of what's inside.
Read and listen to your draft
Text to Speech
Reading a sentence aloud catches what your eyes skip over. Paste your text and the tool reads it back using the voices already installed in your browser, with adjustable rate, pitch and volume and live word highlighting. The browser's own speech synthesis engine does the reading locally, so no audio is generated on a server and nothing is uploaded.
Speech to Text
Dictate into a live transcript with your microphone, using the browser's Web Speech API. It supports 20 languages and has punctuation chips, editing, copy and download.
Improve your style
Style Checker
Highlights passive voice, hedges, -ly adverbs, nominalisations, filler phrases and sentences longer than 25 words in your draft, color-coded and counted.
Passive → Active
Detects passive-voice constructions and rewrites them in active voice when the actor is named. Passives with no actor are flagged with a hint to add the missing subject.
Typo Fixer
Fixes 500+ common English misspellings in one click, with a diff view that strikes through each typo in red and highlights the correction in green.
Capitalization Tool
Seven modes (Title Case, Sentence case, All Words, First Word, Alternating, Inverse and Each Line), with a live preview of all of them at once.
Measure readability
Reading Level
Calculates Flesch Reading Ease, Flesch-Kincaid Grade, Gunning Fog, Coleman-Liau and SMOG scores. Useful for checking whether your docs are readable for a broad audience.
Text Statistics Dashboard
17 metrics at once, including word count, readability, reading time, speaking time, top keywords and character frequency, updating live.
Sentence Counter
Counts sentences, average words per sentence and a Flesch score, and highlights your longest and shortest sentences.
Syllable Counter
Total, per-word and average syllables, with a color-coded word grid and a distribution chart.
Word Counter
Words, characters, sentences, paragraphs, lines and reading time as you type, plus live keyword density.
Analyze keywords and content
Keyword Extractor
Takes a paragraph you've already written and surfaces the single words or 2- and 3-word phrases it repeats most, ranked by frequency and share, with stopword and length filters. Results are ready to copy into a spreadsheet.
Keyword Density and Word Frequency
Rank every word by count and percentage. Word Frequency lets you filter stopwords, set a minimum length, and export to CSV.
Text Similarity
Compare two documents with cosine, Jaccard and character edit-distance scores, plus the words unique to each side and every phrase they share.
Text Summarizer
Truncate text by word or character limit with a custom suffix, or extract the top N sentences by word-frequency relevance.
Score your copy
- Headline Analyzer: scores a title on a transparent 100-point rubric covering length, power words, numbers and impact
- Subject Analyzer: scores an email subject line on six signals, including urgency, personalisation and spam risk
- Copy Scorer: scores landing page copy on readability, sentence length, call to action, customer focus, specificity and clarity
- Char Limit Checker: real-time counts for 13 platforms, including Twitter, LinkedIn, Instagram, YouTube, SEO meta and SMS
- IG Caption Generator: hook, body, CTA and 25 hashtags, with your choice of tone and niche
Clean and format text
Text Cleaner
Strips HTML tags, emoji, URLs, emails, punctuation, digits and stray whitespace using ten filters you can combine.
Paragraph Formatter
Removes extra spaces, collapses blank lines, trims each line, or joins everything into a single line.
Sentence Splitter
Splits a paragraph into sentences, filters by word count or keyword, and exports as a list, numbered set, JSON array or CSV column.
Column Formatter
Aligns every line to a fixed column width with left, right or center padding, and optional borders, which is handy for code comment blocks and README tables.
Notes and typing
- Online Notepad: saves to your browser as you type, keeps up to 20 notes, and downloads any note as Markdown
- Standup Notes: Yesterday / Today / Blockers, copied as plain text or Markdown, with a 7-entry history
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Avro Bangla Typing: type Bangla on an English keyboard using the Avro Phonetic layout, so
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Why client-side
All of these tools work locally in your browser:
- Privacy. Drafts, internal docs and unreleased copy never leave your machine.
- Speed. There's no upload or queue, so results update as you type.
- No friction. No account, no paywall, no email capture.
Try them out
Browse the full Writing & Editing category. If there's a tool you wish existed, or something misbehaves, drop it in the comments.
What's the one editing step you always forget to do before publishing?
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