Do any of the tools require installing software or browser extensions?

No. Every tool runs entirely in your browser with no installation, extension, or plugin required. Open the tool page and start using it immediately.

The Developer's Arsenal

Q: Are the tools on Expert Web Tools really free?

Yes. Every utility on Expert Web Tools is 100% free with no premium tiers, no paywalls, and no account registration required.

Q: Do you log or store my data — JSON, JWTs, files, or passwords?

No. All data formatting, conversion, and cryptographic operations happen locally on your device via client-side JavaScript and WebAssembly. Your sensitive payloads never leave your browser and are never stored on any server.

Q: Why are platform-specific regex and WAF tools necessary?

Many DevOps engineers accidentally deploy PCRE regular expressions to edge networks like Cloudflare, which only supports the RE2 engine. This causes deployment failures or Regex Denial of Service (ReDoS) vulnerabilities. Expert Web Tools generates safe, platform-native configurations for Cloudflare, NGINX, and AWS.

High-performance utilities for code, data, and content. Zero friction. 100% Free.

Every tool runs entirely in your browser using JavaScript and WebAssembly. Your data — JSON payloads, JWT tokens, PDFs, subtitles — is never uploaded to a server. No accounts. No tracking. No logs. Ever.

Developer & Network Tools

DNS Lookup

Advanced DNS propagation check, SPF/DMARC analysis & record lookup.

Text Diff

Find diffs between two text files or code blocks with side-by-side Monaco diff.

Whats My IP?

Detect public IPv4, IPv6, VPN usage, and test for WebRTC leaks.

IP Tools

Universal subnet calculator, IP list sorter, and CIDR splitter utilities.

Header View

Inspect response headers, trace redirects, and bypass WAFs.

WHOIS

Check domain registration, expiry, registrar, name servers and DNSSEC via RDAP.

JSON Tool

Validate, beautify, and auto-repair broken JSON data instantly.

JWT Decoder

Debug JSON Web Tokens and timestamps without server requests.

Base64 Tool

Safely encode or decode plain text and files into Base64 Data URIs.

Hash HMAC

Generate secure hashes and HMAC signatures using MD5, SHA-256, and SHA-512.

cURL to Code

Translate raw curl commands into Python, Fetch, Axios, PHP, and Go instantly.

Docker Help

Generate optimized, multi-stage, security-hardened Dockerfiles & Compose configs.

Edge Lab

Visually generate syntax-perfect rules for Cloudflare, NGINX, Apache, and AWS WAF.

CSP Validator

Analyze policies, detect vulnerabilities, and generate optimized server baselines.

Epoch Guide

Convert Unix timestamps to human-readable dates and vice versa.

Cron Job

Generate and parse complex cron expressions and view upcoming executions.

AI & Data Generators

AI Chatbot

Smart conversational assistant for quick programming answers.

Regex Builder

Generate complex Regular Expressions using plain English prompts.

QR Generator

Create customizable, high-res QR codes for URLs, Wi-Fi, and vCards.

SecurePass

Create cryptographically strong passwords and EFF passphrases.

Lottery Gen

Randomized, CSPRNG number picker for 30 global lotteries.

Text, Media & PDF Utilities

Subtitle Fix

Mass edit, time-shift, clean, and convert SRT/VTT subtitle files.

PDF Tools

Merge, split, unlock, and compress PDF documents securely.

HTML to Text

Strip HTML tags and extract clean readable text.

Word Stat

Real-time word, character, and sentence analytics.

Case Convert

Toggle between UPPER, lower, camelCase and more.

Calculators & Converters

Weather

Live local weather, forecasts, and conditions powered by OpenWeatherMap.

Image Lab

Convert JPG, PNG, WEBP and compress to exact file sizes.

Unit Convert

Convert length, weight, temperature, data units, and view formulas.

Calculator

Standard scientific calculator with smart token memory.

Tip Guide

Calculate gratuity and split bills easily.

Why Developers Choose Expert Web Tools

Expert Web Tools is a privacy-first suite of 30+ free browser-based utilities built for software engineers, DevOps professionals, and web creators. Unlike cloud-based alternatives, every tool — from the WAF Rule Builder and Dockerfile Generator to the JWT Decoder and PDF merger — processes your data 100% locally using WebAssembly and JavaScript. Nothing is sent to a server. Zero logging. No sign-up required.

Whether you need to translate a cURL command into Python in seconds, visually build a Cloudflare firewall rule, decode a JSON Web Token safely, or batch-edit hundreds of subtitle files, Expert Web Tools provides the fastest, most private way to get it done directly in your browser.

100% Client-Side All processing happens in your browser. Your files and data never leave your device.

Zero Sign-Up No accounts, no email required. Open a tool and use it instantly.

30+ Developer Tools From WAF builders and Dockerfile generators to DNS lookup and JWT decoders.

Zero Server Logging We operate with no server-side logging. What you do here stays here.

Frequently Asked Questions

Are the tools on Expert Web Tools really free?

Yes, every utility on Expert Web Tools is 100% free. There are no premium tiers, no paywalls, and absolutely no account registration required.

Do you log or store my JSON, JWTs, or PDF data?

No. We built this platform with a strict privacy-first architecture. All data formatting, conversions, and cryptographic generations happen locally on your device via client-side JavaScript and WebAssembly. Your sensitive payloads never leave your browser.

Why are platform-specific Regex and WAF tools necessary?

Many DevOps engineers accidentally deploy generic PCRE regular expressions to Edge networks like Cloudflare, which only supports RE2. This causes deployment failures or Regex Denial of Service (ReDoS) vulnerabilities. Our WAF and Regex tools generate safe, platform-native configurations.