This page is a curated directory of small utilities that can make technical writing, documentation, design, formatting, and everyday content work a little easier.
These are not always full documentation platforms or major authoring tools. Some are quick helpers for checking colors, cleaning up text, formatting data, testing snippets, or solving small workflow problems.
You can search by utility name, filter by category, or sort the table to explore resources based on what you need.
If you know of a utility that should be included, reach out at admin@twi-net.org. Contributions and recommendations are always welcome.
Listings on this site are editorial and cannot be purchased by any company, organization, or institution. Inclusion is based on relevance to technical communication work. Some links may be affiliate links. These do not influence which tools are included or how they are presented. Advertising, when shown, is clearly labeled and does not affect listings, placement, or visibility within the directory.
Filter by category
| Utility ⬍ | Description | Category | |
|---|---|---|---|
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Accessible Colors | Generate and test accessible color combinations. | |
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Adobe Color | Create color schemes and explore palettes based on accessibility and harmony rules. | |
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axe DevTools by Deque | Test web pages and applications for accessibility issues. | |
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Base64 Encode/Decode | Encode and decode Base64 data. | |
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BrokenLinkCheck | Scan websites for broken links. | |
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Can I Use | Verify browser compatibility for web features before using them in sites, apps, or documentation examples. | |
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CloudConvert | Convert files between many formats. | |
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Clockify | Track time across projects, tasks, and work sessions. | |
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Color Hunt | Browse curated color palette collections. | |
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Contrast Checker by WebAIM | Test foreground and background color contrast for accessibility. | |
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Convert Case | Convert text between uppercase, lowercase, title case, sentence case, and other formats. | |
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Coolors | Generate and explore color palettes quickly for design and branding work. | |
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Diffchecker | Compare text, files, or code side-by-side to identify differences. | |
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Excalidraw | Whiteboard for quick sketches, diagrams, and visual explanations. | |
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Favicon.io | Generate favicons and app icons from text, images, or emoji. | |
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Grammarly | Check grammar, spelling, and writing clarity. | |
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Happy Hues | Explore accessible website color combinations. | |
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Hemingway Editor by Hemingway | Improve readability by identifying dense, hard-to-read writing. | |
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HTTP Status Checker by HTTP Status | Test URLs for status codes, response headers, and redirect chains. | |
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Image Color Picker | Extract colors from uploaded images. | |
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JSON Formatter | Pretty-print, inspect, and validate JSON structures. | |
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Lorem Ipsum | Generate placeholder text for layouts, mockups, and testing. | |
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Photopea | Browser-based image editing similar to Photoshop. | |
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Pomofocus | Simple Pomodoro timer for focused writing and work sessions. | |
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Regex101 | Test, debug, and explain regular expressions with real-time feedback. | |
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Remove.bg | Automatically remove backgrounds from images in seconds. | |
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Squoosh by Google | Optimize and convert images with fine control over compression and formats. | |
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TinyPNG | Compress images without noticeable quality loss for faster loading. | |
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UI Gradients | Browse and generate gradient combinations. | |
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WAVE by WebAIM | Evaluate web pages for accessibility issues and compliance. | |
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YAML Validator by Code Beautify | Validate and format YAML files. |