zippydevtoolsLocal-first
Built for sensitive snippets and everyday debugging.
Zippy removes accounts, dashboards, and server round-trips from tool execution. Paste your input, process it locally in the browser, copy the result, and get back to work.
Workbench for technical tasks
Developer tools with zero ceremony.
Format, decode, generate and inspect data directly in your browser, fast, private and without breaking your flow.
Processed locally
FormatDecodeCopy
Input
{
"status": "ready",
"tool": "json-formatter"
}Output
{
"status": "ready",
"tool": "json-formatter"
}Popular
Frequent tools for debugging, formatting, and generating without leaving the browser.
JSON
JSON Formatter
Format JSON with readable indentation for debugging and documentation.
JSON
JSON Minifier
Remove whitespace and line breaks to reduce JSON size.
JSON
JSON to TypeScript
Generate TypeScript interfaces and types from valid JSON samples in the browser.
JSON
JSON Validator
Check whether JSON is syntactically valid.
Encoding
Base64 Encode
Encode text into Base64 directly in the browser.
Encoding
Base64 Decode
Decode Base64 strings into readable text in the browser.
Encoding
CSS Color Converter
Convert between RGB/RGBA, HEX/HEXA, and HSL/HSLA formats for CSS workflows.
Encoding
JWT Decode
Decode JWT headers and payloads locally for quick inspection without remote processing.
Categories
Compact categories for finding the right tool quickly.
JSON
Format, validate, and optimize JSON structures
JSON Formatter
Format JSON with readable indentation for debugging and documentation.
JSON Minifier
Remove whitespace and line breaks to reduce JSON size.
JSON to TypeScript
Generate TypeScript interfaces and types from valid JSON samples in the browser.
JSON Validator
Check whether JSON is syntactically valid.
CSV to JSON
Convert CSV content or files into JSON using browser-based processing.
HTML to JSON
Transform HTML markup into a JSON tree with tags, attributes, and text nodes.
Encoding
Base64 and URL encoding/decoding tools
Base64 Encode
Encode text into Base64 directly in the browser.
Base64 Decode
Decode Base64 strings into readable text in the browser.
CSS Color Converter
Convert between RGB/RGBA, HEX/HEXA, and HSL/HSLA formats for CSS workflows.
JWT Decode
Decode JWT headers and payloads locally for quick inspection without remote processing.
URL Encode
Convert text into a URL-safe encoded string.
URL Decode
Convert URL-encoded strings back into readable text.
Generators
Generate identifiers, hashes, and synthetic data for utility workflows
Lorem Ipsum Generator
Generate lorem ipsum paragraphs as plain text placeholders.
UUID v4 Generator
Generate random UUID v4 values for tests and temporary identifiers.
Synthetic Person Generator
Generate synthetic person profiles for tests and prototypes, adapting fields to the current locale.
QR Code Generator
Generate PNG QR Codes from text or URLs with configurable size, margin, and error correction level.
SHA-256 Hash
Calculate SHA-256 hashes locally in the browser.
MD5 Hash
Calculate MD5 hashes in the browser for quick integrity checks without cryptographic guarantees.
Text
Fast text transformations and cleanup tools
Character and Word Counter
Count characters, non-space characters, and words from a text sample.
Remove Accents
Convert accented text into a diacritic-free version.
Reverse Text by Word
Reverse the characters of each word while preserving word order.
PascalCase Converter
Convert phrases and variable names into PascalCase.
snake_case Converter
Convert text into snake_case quickly.
Slugify Text
Convert text into URL-friendly slugs.
Date & Time
Conversions between epoch values and readable dates
Age Calculator
Calculate age in full years and total days from a birth date up to today.
Day Counter
Calculate the number of calendar days between two dates.
Epoch to Date
Convert epoch values into readable UTC dates.
Date to Epoch
Convert a readable date or ISO string into an epoch timestamp.
Days Until Date
Calculate how many days are left until a target date or how many days have already passed.
Compressors
Compress and optimize files to reduce size
Extractors
Extract text and structured content with local processing
Math
Financial simulations and practical math calculators