Regex Playground & CSV Filter
Regex Tester
Matches
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CSV Filter (Regex)
Free plan: up to 5 runs per browser session applies only to server tools. This page runs fully in-browser.
Test regular expressions and filter CSV data
WebSauda Regex Tester & CSV Filter runs directly in your browser and is designed for everyday work—whether you are preparing documents for exams, office use, clients, or online applications.
Test Regular Expressions and Filter CSV Data Instantly
WebSauda Regex Playground is a simple and fast way to test, debug, and validate regular expressions. It also includes CSV filtering, making it useful for developers, data analysts, QA testers, and anyone working with structured text.
What You Can Do
- Quickly test any regex pattern
- See matches highlighted in real-time
- Filter CSV rows based on regular expressions
- Validate email, phone, ID, and custom formats
- Clean or extract text from large datasets
Why Use This Tool?
- No signup, fully free
- Runs in-browser — zero data uploaded
- Fast, instant regex matching
- Supports large inputs and CSV files
How to Use the Regex Playground
- Paste your sample text or CSV data.
- Enter your regex pattern.
- View live matches and filtered results instantly.
Frequently Asked Questions
How can I test a regex pattern quickly?
Just paste your text and type the regex pattern. Matches will appear instantly in the results panel.
Can I filter CSV rows using regex?
Yes. Paste your CSV data and enter a regex. Only the rows matching your pattern will be shown, ready to copy or download.
Does this tool upload my data to a server?
No. Everything is processed inside your browser for maximum privacy.