Does KDF Tech work with clients in the USA, Canada, and UK?

Yes. KDF Tech delivers remote custom software, mobile apps, Shopify stores, POS/ERP, and marketplace customization for clients in the USA, Canada, UK, Pakistan, and worldwide.

Does KDF Tech develop mobile apps for Android and iOS?

Yes. We build Flutter Android and iOS apps and publish them on Google Play and the Apple App Store. Multiple customer, seller, and rider apps are already live under our KDF tech Play Store developer account.

Do you customize 6Valley and 6amMart?

Yes. We fully customize and redesign 6Valley and 6amMart — UI/UX, admin panels, Flutter apps, payments, courier integrations, and production deployment. Live examples include Khan Dry Fruits, KPK Collection, and KDF Mart.

Can you design and build a Shopify store?

Yes. We design Shopify storefronts with custom theme UI, banners, category merchandising, and conversion blocks. See our live work at khandryfruit.com.

Do you offer free online tools?

Yes. KDF Tech publishes 200+ free browser tools — calculators, converters, PDF and image utilities, text tools, and generators — at kdftek.com/tools/ for users in the USA, Canada, UK, Australia, Europe, and worldwide.

How can I contact KDF Tech for a project?

Contact us on WhatsApp at +92 345 0144865 or email kdfmarts@gmail.com. You can also submit the project inquiry form on kdftek.com.

Free · No signup · Instant results · Updated 2026-09-17

Regex Tester

Answer: Regex tester applies a JavaScript (ECMAScript) regular expression with flags (g, i, m) and highlights matches against sample text.

About this tool

Free regex tester. Test patterns and see all matches instantly.

Full guide → · developer tools

PatternFlags

Input

Result

The
quick
brown
fox

Runs in your browser — nothing is uploaded.

How to use Regex Tester

Enter regex pattern and flags.
Paste test string.
Inspect matches, groups, and replacement preview.

Why use this free tool

100% free — no account required.
Runs in your browser — inputs stay on your device for these calculations.
Mobile-friendly controls with clear, copyable results.
Published by KDF Tech — software, apps, Shopify, and POS systems.

Need a custom product? Start a project or WhatsApp +92 345 0144865.

FAQ — answers Google & AI can cite

What is Regex Tester?

Regex tester applies a JavaScript (ECMAScript) regular expression with flags (g, i, m) and highlights matches against sample text.

JS vs PCRE differences?

Lookbehind and Unicode property escapes depend on ES version — US Node and browsers track ECMAScript.

ReDoS caution?

Catastrophic backtracking can freeze the tab — avoid evil patterns on huge logs locally.

Log data privacy?

Testing runs client-side; still scrub US customer PII from sample logs before pasting.

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