Regex Toolkit - Test, Explain, Benchmark

🔥 7-DAY LAUNCH SPRINT (May 1–8, 2026): First 100 runs free for new users. Parse and validate cron expressions with human-readable explanations. Calculate next run times, generate expressions from natural language, and access common presets. Supports standard and extended cron syntax.

Regex Helper

maximedupre/regex-helper

Apply named regular expressions to submitted text or an Apify dataset. Get matches by pattern with values, positions, capture groups, and a total match count.

Regex Builder — AI-Powered Pattern Generator

obedient_hierarchy/regex-builder

Build regex patterns from natural language, test against sample data, explain any regex in plain English, validate and optimize patterns, find/replace with backreferences. 15 pre-built patterns for email, URL, phone, date, UUID, text/ID, and more.

🔥 7-DAY LAUNCH SPRINT (May 1–8, 2026): First 100 runs free for new users. Lightweight web scraper for quick data extraction. Get clean text, raw HTML, all links, and page metadata from any URL.

Regex Lab 🧪 — Regex Tester & Validator

perryay/regex-lab

Interactive regex testing tool supporting findall, match, search, split, and sub (replace) modes. Test patterns against sample text, view full match details, capture groups, named groups, and detailed error messages for invalid patterns.

🔥 7-DAY LAUNCH SPRINT (May 1–8, 2026): First 100 runs free for new users. Natural Language Processing toolkit. Perform sentiment analysis, keyword extraction, readability scoring, language detection, and text summarization. Ideal for content analysis, social media monitoring, and text mining.

Regex Tester - Matches, Groups, Explanation, ReDoS Warnings

eliai/regex-tester

Test up to 50 regex patterns against sample text by API: all matches with indexes + named groups, plain-English pattern explanation, ReDoS heuristics and a 4s time-box so catastrophic patterns report instead of hanging.

🔥 7-DAY LAUNCH SPRINT (May 1–8, 2026): First 100 runs free for new users. Scan code repositories for health metrics: outdated dependencies, security vulnerabilities, code quality issues, test coverage, and CI/CD status. Get actionable improvement recommendations.

🔥 7-DAY LAUNCH SPRINT (May 1–8, 2026): First 100 runs free for new users. Analyze password strength with entropy calculation, estimated crack time, common pattern detection, and dictionary checks. Follows NIST guidelines. Generate secure password suggestions.