100% Client-Side & Secure

LazyTools Collection

A comprehensive suite of developer utilities built to run entirely in your browser. Your data never leaves your device.

Converters

Markdown Converter

Convert Markdown text to PDF, HTML, PNG, or JPG files.

Convert HTML code to PDF, Markdown, or plain text format.

Number Base Converter

Convert numbers between binary, decimal, hex, and octal.

JSON / YAML / XML / CSV / TOML Converter

Convert data between JSON, YAML, XML, CSV, and TOML.

cURL Command to Code

Convert cURL commands to Fetch, Axios, Python, Go, and Rust.

JSON to TypeScript

Convert raw JSON payloads into typed TypeScript interfaces.

Markdown to DOCX Converter

Convert Markdown to styled Word documents (.docx) format.

Unix Timestamp Converter

Convert Unix timestamps to readable date and time.

Encoders & Decoders

Base64 Encoder/Decoder

Encode text or files into Base64 and decode them.

URL Encoder/Decoder

Encode and decode URL parameters and queries safely.

Hex ↔ String Converter

Convert text to hex representations and vice-versa.

Punycode Converter

Translate domain names to and from Punycode format.

Morse Code & Binary Converter

Convert text to Morse code or binary, with audio playback.

URL Parser & Builder

Deconstruct, edit, and rebuild complex URL query parameters.

HTML Encoder/Decoder

Encode special characters to HTML entities and decode.

Decode, parse, and inspect JSON Web Tokens (JWT).

Text Escape/Unescape

Escape or unescape special characters for programming.

Generators

Generate random UUID v4, time-based v7, or custom IDs.

Snowflake ID Generator & Decoder

Generate and decode customizable 64-bit Snowflake IDs.

Password Generator

Generate secure, customizable random passwords.

Lorem Ipsum Generator

Generate custom placeholder lorem ipsum text blocks.

QR Code Generator

Generate custom QR codes with PNG and SVG export options.

Formatters & Validators

SQL Formatter & Validator

Format and validate SQL queries for multiple dialects.

JSON Formatter & Validator

Format, validate, and query JSON with an interactive tree.

YAML Formatter & Validator

Format and validate YAML data with an interactive tree.

XML Formatter & Validator

Format and validate XML markup with an interactive tree.

Text Tools

Markdown Converter

Convert Markdown text to PDF, HTML, PNG, or JPG files.

Convert HTML code to PDF, Markdown, or plain text format.

Convert text between camelCase, snake_case, and more.

Markdown Editor

Write, preview, and export Markdown with a clean editor.

Text Diff Visualizer

Compare texts using side-by-side or inline diff views.

Test and debug regular expressions with highlighting.

Count words, characters, lines, and read time for text.

Find and Replace

Search and replace text using standard or regex terms.

CV / Resume ATS Analyzer

Parse PDF resumes and score their ATS search compliance.

Utilities

Cron Expression Parser

Parse, validate, and generate standard cron expressions.

GZip Compressor / Decompressor

Compress and decompress text using native browser GZip.

Convert text to spoken audio using browser speech synthesis.

Transcribe voice or microphone input into text in real-time.

Security

Generate secure MD5, SHA-1, SHA-256, and SHA-512 hashes.

RSA Key Pair Generator

Generate secure client-side RSA public/private key pairs.

AES Encryption/Decryption

Encrypt and decrypt text using secure AES-256-GCM.

Password Hasher

Hash and verify passwords with Bcrypt or Argon2.

Certificate Decoder

Inspect and decode X.509 certificates and fingerprints.

Networking

IP Address Lookup

Look up geolocation and network details for any IP.

DNS Records Lookup

Query DNS records like A, AAAA, MX, TXT, and CNAME.

Subnet Calculator

Calculate network subnets, CIDR ranges, and IP masks.

Scan common network ports and services for connectivity.

Design

Color Converter

Convert colors between HEX, RGB, HSL, and other formats.

SVG Path Editor/Optimizer

Edit, visualize, and optimize vector SVG path data.

Color Contrast Checker

Check color contrast ratios for WCAG A11y compliance.

Pick colors, adjust color channels, and get CSS codes.

Glassmorphism Generator

Design and preview glassmorphism CSS backdrop effects.

CSS Box Shadow Generator

Design, layer, and preview custom CSS box shadows.

Calculators

Percentage Calculator

Calculate percentage values, changes, and ratios.

Convert between length, weight, data, and other units.

Calculate age details, total days, and next birthday.

Timezone Converter

Convert date and time values across global timezones.

Currency Converter

Convert currencies using live exchange rates.

Calculate Body Mass Index using metric or US units.

Date Difference Calculator

Calculate the exact duration and days between two dates.

CSS Clamp Calculator

Generate responsive CSS clamp() functions for layouts.

PDF Tools

Convert PDF document pages into high-quality PNG images.

Extract text from PDF files into editable Word documents.

Convert Word documents (.docx) into standard PDF format.

Extract specific pages or ranges from any PDF document.

Convert multiple images into a single PDF document.

Combine multiple PDF files into a single document.

Markdown Converter

Convert Markdown text to PDF, HTML, PNG, or JPG files.

Convert HTML code to PDF, Markdown, or plain text format.

Rearrange, rotate, delete, and annotate PDF pages.

Reduce PDF file size by compressing images and structure.

Add text or image watermarks to your PDF pages easily.

Image Tools

Markdown Converter

Convert Markdown text to PDF, HTML, PNG, or JPG files.

Color Blindness Simulator

Simulate color blindness filters on uploaded images.

Color Palette Extractor

Extract dominant color palettes from any uploaded image.

Convert standard images into multi-resolution ICO files.

SVG to PNG Converter

Rasterize SVG vector code or files into PNG images.

Image Converter & Editor

Convert formats, resize, rotate, and filter your images.

Compress images by adjusting quality and dimensions.

Resize image dimensions with aspect ratio constraints.

Crop images using preset or custom aspect ratios.

EXIF Viewer & Remover

Inspect and strip metadata from images for privacy.