Do these tools use AI?

Mostly they use curated templates and writing formulas, not a live language model. That keeps them instant and private and means no API key is needed, but the output is generic by design. Edit it so that it says something specific about you or your subject.

Is my text stored or used for training?

No. Everything runs in your browser. Your text is not sent to Stax, is not stored and is not used to train anything.

Can I use the generated text commercially?

Yes. The tools place no restriction on what you do with the output. Because it comes from templates, check that it does not accidentally match another piece you have read, and make sure any facts in it are correct before you publish.

What does the passive voice detector do?

It highlights sentences written in the passive voice and shows what share of your sentences they are. Passive voice is not an error, and it is useful when the actor is unknown or unimportant, but too much of it makes writing feel indirect. Use the highlights to decide which sentences to turn active.

Which tool should I use for a social post?

Use the Caption Generator for a first caption in the tone you want, then the Instagram or TikTok hashtag generator, and the Character Counter in the creator tools to check the platform limit.

Free AI Writing

Writing helpers for the first draft of a small piece of text: a blog title, an email subject line, a bio, a caption, an essay outline or a prompt to start fiction, plus a passive-voice detector for tightening your own sentences. You choose a topic, goal or tone and get several options to pick from and edit.

Despite the name, most of these do not call a language model. They use curated templates and writing formulas, which makes them instant, free and private, but also means the output is a starting point that you should adapt to your own voice and facts. Your text is not sent anywhere.

7 tools available

Most Popular

Blog Title Generator

Generate 30 catchy blog title ideas from any topic — how-to, listicle, question, ultimate guide, and power-title formats. Free, instant, no sign-up.

Try it free →Email Subject Line Generator

Generate 10 email subject lines for any goal — newsletter, sales, announcement, re-engagement, event, or welcome. Character count and spam-word detection included.

Try it free →Passive Voice Detector

Detect passive voice constructions in any text. Highlights passive sentences and shows your passive voice percentage.

Try it free →

Which tool should I use?

A headline: Blog Title Generator — 30 title ideas from a topic in how-to, listicle, question and guide formats.
An email that gets opened: Email Subject Line Generator — 10 subject lines for a newsletter, sale, announcement, re-engagement, event or welcome.
A short bio: Bio Generator — professional, casual, creative or X-style versions from your name, role and achievements.
A social post caption: Caption Generator — three captions for Instagram, LinkedIn, X, Facebook or TikTok in the tone you pick.
Structuring an essay: Essay Outline Builder — introduction, body paragraphs and conclusion with sub-points, exported as plain text.
Starting a story: Writing Prompt Generator — prompts across fiction genres, personal essays and non-fiction.
Tightening a draft: Passive Voice Detector — highlights passive sentences and shows the percentage.

All AI Writing (7)

Passive Voice Detector

Detect passive voice constructions in any text. Highlights passive sentences and shows your passive voice percentage.

Open tool →Essay Outline Builder

Build a structured essay outline with intro, body paragraphs, and conclusion. Add sub-points and export as plain text.

Open tool →Bio Generator

Generate a professional, casual, creative, or Twitter/X bio. Fill in your name, role, and achievements — copy your bio in seconds.

Open tool →Writing Prompt Generator

Get creative writing prompts for fiction, horror, romance, sci-fi, mystery, fantasy, personal essays, and non-fiction. 80+ handcrafted prompts.

Open tool →Blog Title Generator

Generate 30 catchy blog title ideas from any topic — how-to, listicle, question, ultimate guide, and power-title formats. Free, instant, no sign-up.

Open tool →Email Subject Line Generator

Generate 10 email subject lines for any goal — newsletter, sales, announcement, re-engagement, event, or welcome. Character count and spam-word detection included.

Open tool →Caption Generator

Generate social media captions for Instagram, LinkedIn, Twitter, Facebook, and TikTok. Pick tone and platform — get 3 captions with hook, body, CTA, and hashtags.

Open tool →

Frequently Asked Questions

Do these tools use AI?: Mostly they use curated templates and writing formulas, not a live language model. That keeps them instant and private and means no API key is needed, but the output is generic by design. Edit it so that it says something specific about you or your subject.
Is my text stored or used for training?: No. Everything runs in your browser. Your text is not sent to Stax, is not stored and is not used to train anything.
Can I use the generated text commercially?: Yes. The tools place no restriction on what you do with the output. Because it comes from templates, check that it does not accidentally match another piece you have read, and make sure any facts in it are correct before you publish.
What does the passive voice detector do?: It highlights sentences written in the passive voice and shows what share of your sentences they are. Passive voice is not an error, and it is useful when the actor is unknown or unimportant, but too much of it makes writing feel indirect. Use the highlights to decide which sentences to turn active.
Which tool should I use for a social post?: Use the Caption Generator for a first caption in the tone you want, then the Instagram or TikTok hashtag generator, and the Character Counter in the creator tools to check the platform limit.