Text Utilities13 tools Converters14 tools Calculators21 tools Validators & Checkers7 tools
Free AI Tools

Best free Utility Tools you can use right now

Free utility tools for the small jobs, counting words, converting a file, checking an email address or working out a monthly loan payment.

Popular tags: Converter Calculator Finance Developer Text Data Writing
77 Free Tools
8 Categories
100% Free Forever
1,405+ Tools Sitewide
Aug 18, 2026 Last Updated
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Browse Utility Tools

Every free tool on AIToolsay, sorted by the job it actually does.

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Text Utilities

Paste a paragraph and the text utilities here will summarize it, rewrite it, count the words, fix th...

13 tools

Converters

Converters here take CSV into JSON, PDF into editable text and Markdown into HTML, while the unit on...

14 tools

Calculators

No spreadsheet needed for a quick sum. The calculators cover percentages, discounts, tax, loan repay...

21 tools

Validators & Checkers

Bad data hides in plain sight until something breaks. Validators and checkers test emails, URLs, dom...

7 tools

Data Organizers

Rows in the wrong order, notes with no structure, a stock list nobody can read. Data organizers turn...

4 tools

Data Analysis

Numbers on their own do not say much. Data analysis here finds the pattern, compares two sets, measu...

1 tool

Extractors

The part you need is buried on page nine. Extractors pull the keywords, names, dates, tables and pla...

5 tools

Developer Utilities

A minified JSON blob or a long SQL query comes back readable. Developer utilities also clean data, s...

12 tools
The free toolbox, explained

Why use AIToolsay Tools?

A working toolbox rather than a shop window — every tool runs here, in the browser, the moment you open it.

OUR PROMISE

Free Forever

Every tool on this page is 100% free — no signup wall, no trial clock, no credit card.

Organised by Job

Grouped by what each tool actually does, so "write my blog post" lands on the right one first.

Private by Design

Your text is processed for the result you asked for. Nothing is published and nothing is sold.

Fast & Simple

Paste, click, done. Every tool is one screen with no setup and nothing to learn.

No Registration

Open a tool and start typing. No account, no email, no password to remember.

Always Improving

New tools ship every week and the existing ones are retuned as the models get better.

Questions

Everything you wanted to ask

Quick answers about the tools in this category — what they cost, what they need and how they work.

Still have a question? We usually reply within one working day. Report Issues A broken tool or a missing page? Tell us. Submit your AI tool Add your AI tool to our directory.

What sort of jobs do these utility tools cover?
They cover the small tasks that slow a day down. There are text helpers for counting and tidying, converters for files and units, calculators for money questions, checkers for messy data, and extractors that pull details out of long documents.

Is there a converter for CSV and JSON files?
Yes. The converter section handles CSV and JSON in both directions, along with XML, YAML, Markdown and HTML. There is also a pair for PDF and plain text when a document arrives in a format you cannot edit.

Can I work out a loan repayment or a profit margin here?
Yes. The calculator section covers loans, monthly repayments, mortgages, compound interest, tax, discounts, profit margins and break even points. Each one asks for your figures and returns the answer with a short note on how it got there.

How do I check a long list of email addresses?
Use the validator section. It inspects each address and the domain behind it, then reports the ones that look wrong. The same section checks URLs, phone numbers and JSON files that refuse to load anywhere else.

Do I have to pay or create an account?
Neither. Every tool here is free with no cost and no trial, and no account or sign up is needed because they run as guest tools in the browser. Signing in is optional and only saves your history.

Can I keep the result after I close the page?
Yes. Results export in TXT, DOC and HTML with one click, so the output can drop into a document, a report or a web page. Copy and paste works fine too when you only need a line or two.

Will these run on a phone?
Everything works on phones, tablets and desktops with nothing to install. The pages stay light, so a job you started on a laptop can be finished on a phone during a commute without losing what you had.

Which one should I start with?
Start with the problem rather than the name. If it is a wall of text, try a summarizer or an extractor. If it is a number question, open a calculator. If a file arrived in the wrong format, a converter fixes it.
Still have a question? We usually reply within one working day. Report Issues A broken tool or a missing page? Tell us. Submit your AI tool Add your AI tool to our directory.