Last updated: 10 November 2026
How the homepage tools work
The homepage contains 25 browser-based utilities for preparing prompts, analyzing text and planning workflows. The tools use deterministic JavaScript and templates; they do not run ChatGPT or another generative AI model. You can inspect and edit the generated prompt before copying it into your chosen AI service.
Scores and estimates
Prompt scores use heuristics such as whether your instructions include an objective, context, audience, constraints, examples and an output format. A high score does not guarantee a useful or accurate AI answer. Token counts are approximate because actual tokenization varies by model and tokenizer. Text statistics and response comparisons do not verify factual accuracy.
Checking dates and sources
Check article publication dates before using information about AI products. Features, pricing, model availability and usage limits can change. Verify time-sensitive statements with the relevant provider documentation and review important AI-generated answers independently.
Report an error or tool problem
Please use our contact page to report an outdated statement, broken link or tool problem. Include the affected page URL, what happened and what you expected. For factual corrections, include a supporting source where available. Do not send passwords or confidential information.
Explore the free tools or read the prompt-writing guide. See also our About page, privacy policy and terms and conditions.