# Free presentation tools > Free tools for the questions every presenter faces: how many slides, how long, how big the text, how readable the colors, and what the storyline is. They run in your browser, need no account and end in a brief you can open in the editor. - Source: https://ai-presentations.com/tools/ - Updated: 21 October 2026 - Language: English - German version: https://ai-presentations.com/de/tools/ ## Which tool answers your question? Start from the question you have. Each answer gives the rule of thumb and the tool that applies it to your talk. - **How many slides does my talk need?** About one slide for every 1.5 minutes you actually speak. A 20-minute slot with 5 minutes for questions holds about 10 slides. The slide count calculator adapts the number to your slot and format. [Slide count calculator](https://ai-presentations.com/tools/slide-count-calculator/) - **How long will my script take?** Plan with about 130 words a minute in English and 120 in German, plus roughly 10 percent for pauses and slide changes. The speaking time calculator compares your own text with your slot. [Speaking time calculator](https://ai-presentations.com/tools/speaking-time-calculator/) - **How big should the text on a slide be?** At least 18 pt, and larger the farther the last viewer sits: about 24 pt body text on a 75 inch screen seen from 6 meters. The font size calculator gives titles, body and footnotes for your room. [Font size calculator](https://ai-presentations.com/tools/font-size-calculator/) - **Does every slide title make a point?** An action title is a full sentence that states the conclusion. The action title checker scores each title out of 100, counts it as an action title from 80 points and adds a rewrite hint. [Action title checker](https://ai-presentations.com/tools/action-title-checker/) - **Is my text readable on its background?** WCAG 2.2 level AA asks for a contrast ratio of 4.5 to 1 for text and 3 to 1 for large text and charts. The slide contrast checker measures any two colors and offers the nearest color that passes. [Slide contrast checker](https://ai-presentations.com/tools/slide-contrast-checker/) - **What do investors expect in a pitch deck?** About a dozen topics, from the problem to the ask, weighted differently at pre-seed, seed and Series A. The pitch deck checklist shows your gaps and turns them into a brief. [Pitch deck checklist](https://ai-presentations.com/tools/pitch-deck-checklist/) - **What should my storyline be?** The answer first, then the reasons, then the ask. The outline builder proposes a storyline of action titles from occasion, audience, goal and length, and opens it as your brief. [Outline builder](https://ai-presentations.com/tools/presentation-outline-builder/) - **How do I write an elevator pitch?** Cover six things: who you are, who it is for, the problem, your solution, one proof point and a specific ask. At 130 words a minute, 30 seconds hold about 65 words and 60 seconds about 130. The elevator pitch builder cuts your lines into a 30, 60 and 90 second version and times each. [Elevator pitch builder](https://ai-presentations.com/tools/elevator-pitch-builder/) ## From idea to rehearsed talk Use the tools in the order a talk takes shape. Each one is also useful on its own. 1. **Shape the storyline:** Pick occasion, audience, goal and length in the outline builder and edit the proposed action titles. [Outline builder](https://ai-presentations.com/tools/presentation-outline-builder/) 2. **Size the deck:** The slide count calculator turns your slot and your question time into a number of slides and a minute plan per slide. [Slide count calculator](https://ai-presentations.com/tools/slide-count-calculator/) 3. **Build the slides:** Open the outline as a brief in the editor. The AI shows a plan with one card per slide before it builds. 4. **Sharpen the titles:** Paste the titles into the action title checker and start with the lowest scores. [Action title checker](https://ai-presentations.com/tools/action-title-checker/) 5. **Make it readable:** Set the text sizes with the font size calculator and test your colors with the slide contrast checker. [Font size calculator](https://ai-presentations.com/tools/font-size-calculator/) 6. **Rehearse against the clock:** Paste your script into the speaking time calculator and see the time at a slow, normal and fast pace. [Speaking time calculator](https://ai-presentations.com/tools/speaking-time-calculator/) ## How these tools work - **They run on this page:** Every calculation happens in your browser, and you need no account to use them. - **The method is shown:** Each tool has a method section that names its sources. - **From the result to a deck:** Each result ends with a button that opens it as a brief in the editor, with your numbers filled in. ## Pages - [Outline builder](https://ai-presentations.com/tools/presentation-outline-builder/): Free presentation outline builder: pick occasion, audience, goal and length, then edit a slide-by-slide storyline of action titles and open it as your brief. - [Action title checker](https://ai-presentations.com/tools/action-title-checker/): Paste your slide titles and get a score for each: verb, number, so-what and length, with a rewrite hint. Free, runs in your browser, English and German rules. - [Slide count calculator](https://ai-presentations.com/tools/slide-count-calculator/): Enter your time slot, the minutes for questions and the format. This free calculator returns the number of slides, a range and a minute plan per slide. - [Pitch deck checklist](https://ai-presentations.com/tools/pitch-deck-checklist/): Free pitch deck checklist for pre-seed, seed and Series A: tick off what each slide must answer, see your progress and turn the gaps into a brief for your deck. - [Speaking time calculator](https://ai-presentations.com/tools/speaking-time-calculator/): Free speaking time calculator: paste your script or enter a word count, see how long it takes at a slow, normal and fast pace and how many words fit your slot. - [Elevator pitch builder](https://ai-presentations.com/tools/elevator-pitch-builder/): Free elevator pitch generator: fill in six parts and get a 30, 60 and 90 second version with word count, speaking time and a copy button. Runs in your browser. - [Slide contrast checker](https://ai-presentations.com/tools/slide-contrast-checker/): Check the WCAG 2.2 contrast ratio of two slide colors. See AA and AAA results for text and charts, a live slide preview and the nearest colors that pass. - [Font size calculator](https://ai-presentations.com/tools/font-size-calculator/): Free font size calculator for presentations: enter the screen size and the farthest viewer's distance, get the smallest title, body and footnote size in points. ## Frequently asked questions ### Are the tools free, and do I need an account? Yes, they are free and need no account. Every calculation runs in your browser, so you can use the tools without signing up. ### How many slides should a 20-minute presentation have? About 10 slides: take 5 minutes off for questions, then plan one slide for every 1.5 minutes you speak. The range is 8 to 12 slides, and appendix slides do not count. ### How long does it take to present 1,000 words? About 8 minutes at 130 words a minute in English, and about 8.5 minutes with 10 percent added for pauses and slide changes. In German, at 120 words a minute, plan about 9 minutes with the same addition. ### What is the minimum font size on slides? At least 18 pt. The farther the last viewer sits, the larger it must be: on a 75 inch screen seen from 6 meters (20 feet), body text needs about 24 pt, titles 36 pt and footnotes 16 pt. ### What contrast ratio do slide colors need? WCAG 2.2 level AA asks for 4.5 to 1 for text and 3 to 1 for large text, which means 18 pt and up, or 14 pt and up in bold. Charts and icons need 3 to 1, and level AAA asks for 7 to 1. ### What is an action title? A full sentence that states the slide's conclusion, usually with a number and a reason, instead of only naming the topic. The action title checker scores each title out of 100 on six rules: verb, number, so-what, length, filler words and vague wording. --- ai-presentations.com is published by Slaide (https://www.slaide.de), a sole proprietorship run by Nathalie Scholl in Heilbronn, Germany. 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