Spell checking
When writing user documentation, it’s easy to miss typos and spelling mistakes — especially during long editing sessions. That’s why Dr.Explain includes built-in spell checking with language-specific dictionaries. It automatically highlights spelling errors and suggests corrections, helping you produce clean, professional documentation.

Dr.Explain uses plug-in dictionaries for the most common languages and also supports custom dictionaries. This lets you add specialized terms or even load dictionaries for languages not included by default. You can adjust how spell checking works — for example, you can set the program to ignore words in ALL CAPS or skip internet addresses and file paths. While you’ll always review your guide carefully before final export, the red underlines make it easier to spot and fix mistakes quickly.
How spell checking works in Dr.Explain?
When spell check is enabled, potential errors are underlined in red, and the spell check icon turns blue to show it’s active.
Spell checking is available for 12 languages. You can customize how spell check works by:
- choosing which options to apply (e.g., use only main dictionaries, skip words with specific formatting);
- importing spell check settings from other Dr.Explain projects.
How to check spelling in Dr.Explain?
The spell check button is right on the toolbar — no need to dig through settings.

Documentation examples created with Dr.Explain
You can find links to real user guides made with Dr.Explain on this page. Below are sample screenshots of PDF and HTML manuals.






What are the benefits of using Dr.Explain?
Dr.Explain helps you work efficiently and precisely. Its support for spell checking in 12 languages is especially valuable for international projects.
Accurate text. Automatic spell checking reduces typos and incorrect wording in your documentation.
Unlimited topic nesting and scalability. Create deeply nested topics while keeping your document structure easy to navigate.
Time-saving reuse. Import and export spell check settings to use them across multiple Dr.Explain projects.
What type of users is Dr.Explain suited for?
Dr.Explain helps you build effective help systems for any industry. It’s especially useful when you need:
- a tool that automates routine tasks;
- multi-format export from a single source document;
- flexible content control and styling;
- team collaboration features;
- a free trial to test before you decide.
Users about the convenience of working in Dr.Explain
"We’ve compared Dr.Explain with a few other applications, but their output was not quite satisfactory. Actually we were in search of a user-friendly application that would make it easier to create CHM to use offline or online. We found that Dr.Explain is quite user-friendly and supports multiple formats to export the project to".
Weerawat Charoenkoop, the lead software developer in the SolidPlant project
Interview with Weerawat
"It's so much easier using Dr.Explain software as I can easily add multiple levels and tiers to a particular topic. Rather than try to embed these in multiple file systems, the software has enabled me to find things much quicker and easier than I could before".
Mark Oborn, a sole director of his own company
Interview with Mark
Frequently Asked Questions
Is there a tool for using variables?
Yes, there is. Read more about using variables in Dr.Explain
Does the program include spell checking?
Yes. Spell checking supports plug-in dictionaries for the most popular languages.
Can I use the program without coding experience?
Yes. You can create professional user guides in Dr.Explain without technical knowledge or programming skills.
Is there a find-and-replace tool?
Yes. You can customize the search to:
- look only in topic titles;
- search within control labels;
- limit to topic content;
- enable case-sensitive matching.
Do I need to export the document to review changes?
No. Dr.Explain allows to check all edits instantly in the viewer.
Is it possible to customize annotation design?
Yes. Use the built-in annotation designer to modify styles and layouts.