Aan de slag
De ultieme regex playground voor Nederlandse developers
Start Validating in Under a Minute
Skip the npm install and local server setup. RegExMakker runs entirely in your browser using WebAssembly, so you can paste a pattern and test it against production logs immediately.
1. Open the Editor
Navigate to the main dashboard. The interface loads a blank PCRE2-compatible editor with three resizable panes and a persistent toolbar for flags like case-insensitivity and dotall mode.
2. Input Your Pattern
Type expressions like `(?
3. Load Test Data
Paste raw strings, CSV exports, or JSON arrays into the test pane. The engine highlights matches, zero-width assertions, and capture groups with distinct color coding as you type.
How the Workspace Functions
RegExMakker organizes the viewport into three dedicated zones to eliminate context switching and speed up pattern refinement.
Pattern Console
The top-left field compiles your regex on every keystroke. Use the dropdown to toggle modifiers like `i`, `m`, `s`, and `x`. The console also displays the compiled AST tree for complex lookarounds.
String Inspector
The bottom-left area accepts unlimited test lines. Scroll through highlighted matches, click any capture to isolate it, and use the built-in find/replace preview to verify substitution logic before exporting.
Match Breakdown
The right panel lists every successful match with byte offsets, captured group values, and backtracking counts. Export results as JSON or copy ready-to-use snippets for JavaScript, Python, and PHP.
Ready to Debug Your Patterns?
Join 18,450+ engineers who validate their regular expressions daily without installing a single dependency.