All-in-One Developer Tools
Fast, elegant, and secure online utilities for everyday software development. Format, convert, encode, decode, and generate data directly in your browser without transmitting sensitive information.
JSON<->Yaml
Convert between JSON and YAML syntax instantaneously with bidirectional parsing, syntax highlighting, and 100% client-side data privacy.
Number Base
Simultaneously convert numbers across Decimal (Base 10), Binary (Base 2), Hexadecimal (Base 16), and Octal (Base 8) number systems.
Date
Effortlessly convert Unix epoch timestamps to ISO 8601, UTC, and local date-time strings with automatic timezone detection.
HTML
Safely encode special characters into HTML entities to prevent XSS vulnerabilities, or decode escaped HTML strings back to readable characters.
URL
Encode special characters in URLs and query strings using percent-encoding (RFC 3986), or decode encoded URIs into human-readable text.
Base64
Convert plain text strings into Base64 encoded format or decode Base64 strings back to UTF-8 text with instant client-side processing.
JWT
Decode JSON Web Tokens (JWT) in real-time to inspect token headers, user claims, expiration timestamps, and algorithms in complete privacy.
JSON
Format, prettify, and validate JSON data online with instant syntax validation and clean indentation.
XML
Format, indent, and validate XML documents, SVG files, and SOAP payloads into clean, readable markup.
SQL
Transform unformatted and dense SQL queries into clean, readable, standardized SQL code with keyword capitalization and aligned clauses.
Hash
Generate cryptographic hash digests (MD5, SHA-1, SHA-256, SHA-512) from plain text strings in real time using client-side algorithms.
UUID
Generate cryptographically secure random UUID v4 (Universally Unique Identifiers) in bulk with custom casing and hyphen formatting.
Text
Generate customizable Lorem Ipsum dummy text by paragraph, sentence, or word count for web design mockups and typography layouts.
Inspector & Convertor
Convert strings between popular programming naming conventions (camelCase, snake_case, kebab-case, PascalCase) while inspecting character and word counts.
Engineered for Modern Developers
Everything you need for daily data manipulation tasks, designed with security, speed, and simplicity at the core.
100% In-Browser Privacy
Your JWT tokens, SQL queries, JSON configs, and proprietary passwords never touch an external server. Computations execute entirely in your local browser sandbox.
Lightning Fast Performance
Built on Next.js and optimized client-side libraries for instantaneous results as you type or paste. No waiting for round-trip server latency.
Curated Everyday Toolkit
From epoch conversions and UUID generation to YAML formatting and Base64 debugging, access essential dev utilities all in one unified interface.
Frequently Asked Questions
Answers to common questions about DeveloperToolz features and security.
Are my data, tokens, and payloads secure when using DeveloperToolz?
Yes, 100%. All formatting, encoding, decoding, conversion, and hashing tools execute completely within your browser using client-side JavaScript. No data is ever uploaded to our servers or stored anywhere.
Is DeveloperToolz free to use?
Yes. All developer tools on DeveloperToolz are completely free to use without limits, subscriptions, or account creation.
Can DeveloperToolz work offline?
Once the page is loaded in your browser, all core utility algorithms run client-side in memory and do not make network calls for processing.
What developer utilities are included?
DeveloperToolz provides formatters (JSON, SQL, XML), encoders and decoders (Base64, HTML Entities, URL, JWT), converters (JSON to YAML, Number Base, Unix Timestamp/Date), generators (Cryptographic Hash, UUID v4, Lorem Ipsum), and text inspectors.