Client side tools that run in your browser:
No accounts, no tracking, fast and lightweight solutions.

JSON & Data

JSON Formatter & Validator

Format, validate, and minify JSON.

json formatter validator

Security

Password Generator

Generate secure random passwords.

password generator security

Development

UUID Generator

Generate UUIDs for testing purposes.

uuid guid generator

Encoding

Base64 Encoder & Decoder

Encode and decode Base64.

base64 encoder decoder

Encoding

URL Encoder & Decoder

Encode and decode URL components.

url encoder decoder

Development

Unix Timestamp Converter

Convert Unix timestamps to dates and dates to Unix timestamps.

unix timestamp timestamp epoch

Development

Number Base Converter

Convert numbers between binary, decimal, hexadecimal, and other bases from 2 to 36.

binary decimal hexadecimal

Security

Hash Generator

Generate MD5, SHA-1, SHA-256, SHA-384, and SHA-512 hashes.

hash md5 sha

Development

Regex Tester

Test regular expressions against text and inspect matches.

regex regular expression regexp

Networking

CIDR Calculator

Calculate IPv4 network ranges, subnet masks, broadcast addresses, and usable hosts.

cidr subnet ipv4

Networking

IPv4 Validator & Converter

Validate IPv4 addresses and convert them between dotted decimal, integer, hexadecimal, and binary formats.

ipv4 ip address validator

Development

JWT Decoder

Decode and inspect JWT headers and payloads.

jwt json web token decoder

Development

CSV ↔ JSON Converter

Convert CSV data to JSON and JSON arrays to CSV.

csv json converter

Development

JSON Diff

Compare two JSON documents and clearly identify added, removed, and changed values.

json diff compare

Development

Text Diff

Compare two blocks of text and identify added, removed, and changed lines.

text diff compare

Development

Unit Converter

Convert between common units of length, mass, temperature, area, volume, speed, time, and digital data.

unit converter conversion length

Home & Garden

Paint Calculator

Estimate paint quantities and costs for interior or exterior projects.

paint calculator paint coverage paint estimator

Home & Garden

Recipe Scaler

Scale recipes by servings or yield and convert ingredient quantities.

recipe scaler recipe calculator recipe converter

Home & Garden

Food Measurement Converter

Convert common cooking measurements between US customary, imperial, and metric units.

food measurement converter cooking measurement converter cooking unit converter

Home & Garden

Flooring Calculator

Calculate flooring quantities, waste, package counts, and material costs for one or more rooms.

flooring calculator flooring square footage calculator flooring area calculator

3D Printing

3D Print Project Tracker

Track 3D printing projects, parts, quantities, build plates, print progress, print time, and electricity usage.