Business writing checker
Paste an email, report or proposal. CrispWrite marks it up like an editor’s proof: what to cut, what’s vague, what’s passive, and how it will land.
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Rewrite it crisply
AI · on requestKeeps your facts, fixes structure: request first, filler out, active voice.
Paste text above first.
AI can make mistakes. Check names, numbers and commitments before you send.
What the proof marks mean
Editors have marked up galley proofs with a blue pencil for a century. CrispWrite uses the same idea: every mark is something a good editor would query, and each one has a reason you can read by hovering or tapping it.
| Mark | What it flags | Example → fix |
|---|---|---|
| struck through | Wordy phrases and filler words that add length, not meaning | “in order to” → “to”; “I just wanted to” → cut |
| amber | Corporate jargon and weak verb phrases | “leverage” → “use”; “was responsible for” → “led” |
| violet | Weasel words: vague claims and hedges | “as soon as possible” → “by Friday 3 pm” |
| wavy blue | Passive voice that hides who acted | “mistakes were made” → “we made mistakes” |
| dashed box | Sentences over 25 words | Split at “and”, “which” or “because” |
Why busy readers need crisp writing
Most business email is read on a phone, between other things. Research by the Nielsen Norman Group has shown for years that people scan screens rather than read word by word, so the first sentence carries the message. A crisp email puts the request or decision first, uses short sentences, names who does what, and gives dates instead of “soon”.
The UK Government Digital Service and the US federal plain language guidelines recommend the same habits: an average sentence of 15 to 20 words, active voice, everyday words and no unexplained jargon. CrispWrite checks each of those, so you can fix a draft in a minute instead of guessing.
Want the full method? Read the business writing guide, which walks a real email through five edits and re-scores it after each one.
Focused checkers
- Email tone checkerHow your email will land, and a rewrite in the tone you want.
- Grammar checkerAI corrections for business text, with every change listed.
- Readability checkerFlesch Reading Ease, grade level and four more indices.
- Passive voice checkerFind “was decided by” sentences and put the actor first.
- Wordiness checkerSwap wordy phrases for short ones in one click.
- Jargon translatorTurn corporate-speak into plain English.
- Filler word finderCut them from writing, or record yourself to count spoken ums.
- Weasel word finderCatch vague claims and hedges.
- Sentence length checkerSee every sentence as a bar and split the long ones.
- Power wordsStrong verbs for results, requests and proposals.
- Subject line testerLength, inbox preview, spam triggers and better options.
- Word counter & reading timeWords, characters, reading and speaking time.
- Flesch–Kincaid calculatorGrade level from text or from your own counts.
- Business writing guideSeven habits of clear business writing, with a live edit.
Questions people ask
Is this business writing checker free?
Yes. The Crisp score, proof marks, readability indices and tone signals are free and unlimited because they run in your browser. The AI rewrite is also free, with a fair-use limit of about 15 requests every 10 minutes.
How is the Crisp score calculated?
It combines three sub-scores. Clarity (40%) uses Flesch Reading Ease, average sentence length, the share of passive sentences and sentences over 25 words. Conciseness (30%) counts wordy phrases, filler words, weak verb phrases and jargon per 100 words. Tone (30%) counts hedges, apologies, pressure words, vague claims, exclamation marks and ALL-CAPS words.
Is my text stored or sent anywhere?
The scoring never leaves your device. Your draft is kept in your browser’s local storage so it survives a refresh; you can clear it on the privacy page. Text is sent to our AI model only when you press an AI button, and it is not stored by us.
Does it check grammar and spelling too?
The live checker focuses on clarity, conciseness and tone, which spell-checkers miss. For grammar, spelling and punctuation use the AI grammar checker, which lists every correction it makes.
What is a good Crisp score for a business email?
Aim for 80 or more. Most clear emails land between 75 and 95. A score under 60 usually means long sentences, several passive constructions or a pile of filler and jargon that a busy reader will skim past.
Is CrispWrite a replacement for Hemingway Editor or Grammarly?
It covers similar ground to Hemingway Editor (readability, passive voice, long sentences) and adds business-specific checks: jargon, weasel words, email tone and an AI rewrite in the tone you choose. It works in any browser without an account.