Top Free AI Tools You Should Try Today

The free AI tool landscape has matured significantly. In 2024 and 2025, the best free tools were often limited demos designed to push you toward a paid plan. In 2026, a new generation of genuinely free, browser-based tools has arrived — tools that give you the full feature set without a paywall, an account requirement, or a hidden catch.

This list covers the tools worth trying today. Each one is free, works in your browser, and handles a real problem.

Free Text and Writing Tools

Word Counter — try it now

The Word Counter tracks words, characters, sentences, paragraphs, and reading time simultaneously as you type. It is the first tool most content professionals bookmark because the use case is universal. Blog writers use it for SEO length targets. Marketers use it for ad copy limits. Academic writers use it for submission requirements.

What makes it worth trying today: it gives you more data per paste than any comparable free tool, with zero setup. Open the tab, paste your text, done.

Readability Score Checker — try it now

Paste any text into the Readability Score Checker and immediately get multiple reading-level scores including Flesch-Kincaid Grade Level, Flesch Reading Ease, Gunning Fog Index, and SMOG. Most content professionals check readability rarely, if ever. The ones who do consistently produce more accessible, higher-performing content.

Text Formatter — try it now

The Text Formatter handles case conversion, whitespace cleanup, and text transformation. Paste text from any source — Google Docs, Notion, a PDF export, an email — and clean it up in seconds. Particularly useful for normalizing content before publishing or importing into a CMS.

Text to Bullet Points — try it now

The Text to Bullet Points tool converts dense prose into a clean bulleted list. Try it on a paragraph of meeting notes or a long email and you will immediately see the value. The kind of reformatting that used to take ten minutes of manual editing takes about five seconds.

Free AI Prompt Tools

Prompt Length Checker — try it now

If you use ChatGPT, Claude, Gemini, or any other language model regularly, the Prompt Length Checker will immediately become one of your most-used browser tabs. Paste your prompt and see the exact token count for different models. Stop guessing whether your prompt will fit in the context window.

Prompt Cleaner — try it now

The Prompt Cleaner strips redundant phrases, filler words, and noise from prompts. A cleaned prompt typically uses 20–40% fewer tokens with no meaningful loss of instruction quality. Try it on any prompt you have written recently — the before-and-after comparison is usually surprising.

Prompt Templates — try it now

The Prompt Templates library is a curated collection of ready-to-use prompts for common tasks. Instead of starting from scratch, pick a template for your use case, customize the variables, and send. Worth exploring even if you already have prompts you use regularly — there are patterns in the library that improve on most hand-written prompts.

Free Developer Tools

JSON Formatter — try it now

Paste any JSON into the JSON Formatter and get back an indented, validated, syntax-highlighted version. Also minifies JSON when you need compact output. The kind of tool that feels unnecessary until the first time you are debugging a 500-character API response and cannot parse it visually.

Regex Tester — try it now

The Regex Tester & Explainer does two things: it tests your regular expression against sample text and highlights matches, and it explains what each component of your pattern does in plain English. Dramatically speeds up regex writing and debugging, especially for patterns you do not write daily.

Free Finance Tools

Percentage Calculator — try it now

The Percentage Calculator handles the three percentage calculations people Google most often. Faster than a calculator app, simpler than a spreadsheet, and it shows the formula so you understand the result rather than just trusting it.

Currency Converter — try it now

Live exchange rates, clean interface, no ads. The Currency Converter is the fastest way to check conversion values when you are invoicing a client in a foreign currency or pricing a product for an international market.

VAT / Sales Tax Calculator — try it now

The VAT / Sales Tax Calculator adds or removes tax at any configurable rate. Useful for freelancers and business owners who invoice across jurisdictions with different tax rates.

Free Social Media Tools

Character Limit Checker — try it now

The Character Limit Checker validates your text against the limits for Twitter/X, LinkedIn, Instagram, Facebook, YouTube descriptions, and other platforms simultaneously. The platform-by-platform color coding makes it immediately obvious where you are over the limit and by how much.

Social Media Post Formatter — try it now

The Social Media Post Formatter formats text with the line breaks, spacing, and structure that each platform renders correctly. Text that looks fine in a word processor often looks broken when posted — this tool prevents that. See also: Tools to Automate Social Media Posts.

One Tool You Probably Have Not Tried

The most underused tool on this site is the Token Reducer. If you pass long documents to a language model as context — articles, reports, transcripts — the Token Reducer compresses them to the minimum tokens needed to preserve meaning. Fitting more context into a single API call, or reducing the cost of a call by cutting token count, is a straightforward win that most people have not discovered yet.

Browse the full collection on the tools page. For background on the broader category, start with the Ultimate Guide to AI Tools (2026).