AI text checkerValidators

AI text checker. Find the tells, fix them.

Paste up to 20,000 characters. Em dashes, words like delve and crucial, "not just X but Y", chatbot phrases, filler, lists of three, title case headings and curly quotes light up, each with a plain fix. It is not an AI detector. Nothing leaves your browser.

Cost to you

Free

Runs in your browser. No signup, no API call, no limit per hour.

browser
runs in: none
API calls: none
account

Use it now

Use the AI text checker here

It runs in your browser. Nothing you type is sent anywhere, there is no signup and no limit.

Tells per 100 words: 22.2
Tells found: 14
Words: 63

Your text, tells highlighted

Unlocking The Power Of Modern Onboarding In today's fast-paced digital landscape, onboarding is not just a checklist, but a strategic advantage. It's important to note that our new flow — built in March 2026 — helped sign-ups grow 18%. We delve into three pillars: speed, clarity, and trust. Additionally, the team leveraged a robust set of tools to streamline every step. I hope this helps!

Count per kind

Em and en dashes2
AI vocabulary6
"Not just X, but Y"1
Chatbot phrases1
Filler phrases2
Lists of three1
Title case headings1
Curly quotes0

What to change

Title case headings
"Unlocking The Power Of Modern Onboarding" Use sentence case: capital on the first word and names only.
AI vocabulary
"Unlocking" Say what the reader can now do.
Filler phrases
"In today's fast-paced digital landscape" Cut it, start with the point.
"Not just X, but Y"
"not just a checklist, but" State the point directly.
Filler phrases
"It's important to note that" Cut it and state the point.
Em and en dashes
"—" Use a comma or a period.
Em and en dashes
"—" Use a comma or a period.
AI vocabulary
"delve" Use "look at" or "dig into".
Lists of three
"speed, clarity, and trust" Is it really three? Use the real number of items.
AI vocabulary
"Additionally" Use "also", or start a new sentence.
AI vocabulary
"leveraged" Use "use".
AI vocabulary
"robust" Say what it survives.
AI vocabulary
"streamline" Use "simplify" and say what step went away.
Chatbot phrases
"I hope this helps!" Cut it.

This is not an AI detector. It flags style patterns people often read as machine-written, and a person can write every one of them. Want a rewrite? Try the AI humanizer, then check the result here.

Run it from your agent

Copy one prompt, give it to your agent.

Fill in the placeholder, paste it, and the agent runs the same job with current data on your looot account and shows the cost.

You give it: up to 20,000 characters of text.
Billed per call, nothing while your agent is idle.
The agent shows the price before it calls.

Prompt: AI text checker

Use looot to check this draft for AI writing tells and fix them: [paste the draft]. 1. Set up https://looot.ai/skill.md. 2. List every em dash, overused word (delve, crucial, landscape, tapestry, robust), "not just X but Y", chatbot phrase, filler phrase and forced list of three. 3. Run a chat completion endpoint to rewrite only those sentences, keeping every fact. 4. Return the list and the edited draft.

Give this to your agent

Setup command

set up looot - https://looot.ai/skill.md

What comes back

What your agent gets from ai text checker

Field names as the providers return them. The exact set varies by endpoint, and your agent reads it from the catalog.

text with each tell highlighted
count per kind of tell
tells per 100 words
a plain-word fix per tell

Use it for

What people do with ai text checker

Edit before you post
Catch the em dashes and stock phrases in a post or an email before anyone reads it.
Check a rewrite
Run the AI humanizer, then paste its answer here and see what is left.
Keep a style guide
Hold docs and release notes to plain words with a quick paste.
Review agent output
Check what your agent wrote before it goes out, at no cost.

Set up once

Three steps. Your agent does the rest.

Paste one prompt into your agent

Set up looot

Done, looot is connected.

Copy one prompt from /connect into Claude Code, Cursor, or any MCP agent. No SDK, no dashboard click-through first.

Your agent finds the right operation

Hunter$0.0265

Exa$0.0090

Diffbot$0.0032

The agent finds the operation it needs and sees the price first. It calls nothing blind.

You watch what it cost

Hunter$0.0265

Exa$0.0090

Diffbot$0.0032

Total$0.0387

Every call settles for its quoted price and lands in the ledger. You always know what ran and what it cost.

Keep going

Generators
AI humanizer
Rewrites up to 1,500 characters of AI-written text in plain words, with the tells removed. Check facts before using.
Runs a real API call$0.000006 / result
Research
AI text analyzer
Summary, sentiment, topics and intents with scores for a short English text, from one real API call.
Runs a real API call$0.0010 / call
Calculators
Token counter
Characters, words and an estimated token count for any text, with context share and cost per model.
Free, no signupno limit

FAQ

Questions about ai text checker

No. It cannot tell who wrote a text, and no score here means a percent of AI. It flags style patterns people often read as machine-written. A person can write every one of them, and a model can avoid them all.

Eight kinds: em and en dashes, overused words such as delve, crucial, landscape and tapestry, "not just X but Y", chatbot phrases such as "I hope this helps", filler such as "in order to", lists of three, title case headings and curly quotes.

The number of tells found divided by the word count, times 100. It lets you compare a short and a long text. Lower is plainer. There is no pass mark.

Models often group ideas in threes even when there are two or four. The checker flags every "A, B and C" so you can check the real number. Many will be fine.

No. The checker runs in your browser with fixed patterns. Nothing is uploaded, and there is no account or limit.

The word lists and phrases are English. Dashes and curly quotes are found in any language.

Each finding has a plain fix, such as "use a comma or a period" for a dash or "use" for leverage. For a full rewrite, try the AI humanizer and check the result here.

Copy the prompt above. Your agent sets up looot from skill.md, lists the same tells, and rewrites only those sentences with a chat completion endpoint.

For agents

tool: AI text checker
category: Validators
input: Up to 20,000 characters of text
output: text with each tell highlighted, count per kind of tell, tells per 100 words, a plain-word fix per tell
price: per call, read live from the catalog on the web page
web tool: runs in the visitor's browser, no API call, free and unlimited
schedule: on demand
setup: https://looot.ai/skill.md
llms.txt: https://looot.ai/llms.txt
updated: 2026-10-14

markdown /free-tools/ai-text-checker.md

Run ai text checker from your own agent.

Start your workspace, top up, and paste the prompt into the agent you already use. It runs the job with live data and shows the cost first.

Start your workspace See all free tools