Est. 2024 · Built to last
A workshop of quiet tools for the working web.
A small workshop of browser utilities — formatters, encoders, generators, converters. No accounts, no uploads, no tracking. Just fast tools that do one thing well.
59
curated tools
across 12 departments
0ms
server roundtrip
everything runs in-browser
0
accounts required
no login, no tracking
I · On the workbench
The tools you reach for first
01 / 59
JSON Formatter
Format, validate, and beautify JSON data online for free. Minify or prettify JSON with syntax highlighting. No signup re…
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02 / 59
Base64 Encode / Decode
Encode and decode Base64 data online for free. Supports text and file encoding with instant results.
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03 / 59
UUID Generator
Generate random UUIDs (v1 and v4) online for free. Bulk generate up to 100 UUIDs with custom formatting.
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04 / 59
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes online for free. Supports text and file hashing.
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05 / 59
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds.
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06 / 59
Password Generator
Generate strong, random passwords online for free. Customize length, character types, and strength.
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II · Departments
Every tool, in its place
I
Formatters & Beautifiers
Format and beautify code in many programming languages
07 tools
›
01
JSON Formatter
Format, validate, and beautify JSON data online for free. Minify or prettify JSON with syntax highlighting. No signup re…
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Formatters & Beautifiers
02
HTML Formatter
Format and beautify HTML code online for free. Auto-indent nested tags with syntax highlighting.
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Formatters & Beautifiers
03
CSS Formatter
Format and beautify CSS code online. Minify or prettify stylesheets with one click.
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Formatters & Beautifiers
04
JavaScript Formatter
Format and beautify JavaScript code online for free. Customize indentation and style.
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Formatters & Beautifiers
05
SQL Formatter
Format and beautify SQL queries online. Supports MySQL, PostgreSQL, and SQLite dialects.
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Formatters & Beautifiers
06
XML Formatter
Format and beautify XML documents online. Minify or prettify XML with syntax highlighting.
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Formatters & Beautifiers
07
YAML ↔ JSON Converter
Convert between YAML and JSON formats online. Auto-detects input format with error highlighting.
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Formatters & Beautifiers
II
Encoders & Decoders
Encode and decode data in various formats
05 tools
›
01
Base64 Encode / Decode
Encode and decode Base64 data online for free. Supports text and file encoding with instant results.
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Encoders & Decoders
02
URL Encode / Decode
Encode and decode URLs online for free. Supports component encoding and full URL encoding.
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Encoders & Decoders
03
HTML Entity Encode / Decode
Encode and decode HTML entities online. Supports named and numeric entities.
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Encoders & Decoders
04
JWT Decoder
Decode and inspect JWT tokens online. View header, payload, and signature with expiration check.
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Encoders & Decoders
05
Unicode Escape / Unescape
Escape and unescape Unicode characters online. Supports \uXXXX and other formats.
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Encoders & Decoders
III
Generators
Generate random data, codes, and identifiers
08 tools
›
01
UUID Generator
Generate random UUIDs (v1 and v4) online for free. Bulk generate up to 100 UUIDs with custom formatting.
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Generators
02
Password Generator
Generate strong, random passwords online for free. Customize length, character types, and strength.
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Generators
03
Lorem Ipsum Generator
Generate Lorem Ipsum placeholder text online. Choose paragraphs, sentences, or words.
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Generators
04
Hash Generator
Generate MD5, SHA-1, SHA-256, SHA-512 hashes online for free. Supports text and file hashing.
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Generators
05
Random Color Generator
Generate random colors with HEX, RGB, and HSL values. Lock colors and regenerate the rest.
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Generators
06
Regex Tester
Test regular expressions online with real-time matching, group highlighting, and replace functionality.
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Generators
07
Cron Expression Generator
Build and interpret cron expressions visually. See next execution times and human-readable descriptions.
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Generators
08
QR Code Generator
Generate QR codes from text or URLs for free. Customize size, error correction, and colors. Download as PNG or SVG.
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Generators
IV
Converters
Convert between different data formats and units
09 tools
›
01
Timestamp Converter
Convert Unix timestamps to human-readable dates and vice versa. Supports seconds and milliseconds.
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Converters
02
Number Base Converter
Convert numbers between binary, octal, decimal, hexadecimal, and any base (2-36).
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Converters
03
Color Converter
Convert colors between HEX, RGB, HSL, HSV, and CMYK formats with a visual color picker.
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Converters
04
Unit Converter
Convert between common units including length, weight, temperature, area, volume, data, and speed.
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Converters
05
CSS Unit Converter
Convert between CSS units: px, rem, em, pt. Set custom root font size for accurate rem calculations.
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Converters
06
Markdown to HTML
Convert Markdown to HTML online with live preview. Supports GitHub Flavored Markdown.
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Converters
07
CSV to JSON
Convert CSV data to JSON format online. Supports custom delimiters and file upload.
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Converters
08
Image Format Converter
Convert images between PNG, JPEG, WebP, and BMP formats in your browser. No upload required.
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Converters
09
Timezone Converter
Convert times between any time zones around the world. Compare multiple zones side by side for meeting planning.
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Converters
V
Text Tools
Manipulate, analyze, and transform text
06 tools
›
01
Word & Character Counter
Count words, characters, sentences, paragraphs, and lines online. Includes reading time estimation.
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Text Tools
02
Case Converter
Convert text between UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case, and more.
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Text Tools
03
Text Diff Checker
Compare two texts and highlight differences. Shows additions, deletions, and modifications.
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Text Tools
04
Duplicate Line Remover
Remove duplicate lines from text online. Preserves order with case-sensitive options.
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Text Tools
05
String Escape / Unescape
Escape and unescape strings for JSON, JavaScript, Java, Python, and XML formats.
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Text Tools
06
Text to Slug
Convert text to URL-friendly slugs. Lowercase, replace spaces with hyphens, remove special characters.
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Text Tools
VI
Color Tools
Pick, convert, and create color palettes
02 tools
›
01
Color Palette Generator
Generate color palettes from a base color. Create complementary, analogous, triadic, and split-complementary schemes.
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Color Tools
02
Color Contrast Checker
Check color contrast ratios against WCAG AA and AAA standards. Preview text with live colors.
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Color Tools
VII
CSS Tools
Generate and preview CSS properties
05 tools
›
01
CSS Box Shadow Generator
Generate CSS box-shadow visually with sliders. Supports multiple layers, inset, and live preview.
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CSS Tools
02
CSS Gradient Generator
Generate CSS linear, radial, and conic gradients visually. Add multiple color stops with live preview.
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CSS Tools
03
CSS Border Radius Generator
Generate CSS border-radius visually with individual corner controls and live preview.
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CSS Tools
04
CSS Flexbox Playground
Learn and experiment with CSS Flexbox visually. Control all container and item properties in real-time.
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CSS Tools
05
CSS Grid Generator
Build CSS Grid layouts visually. Set rows, columns, gaps, and merge cells with live preview.
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CSS Tools
VIII
Calculators
Calculate and convert numeric values
06 tools
›
01
Aspect Ratio Calculator
Calculate and convert aspect ratios. Input width and height to find the ratio, or use a ratio to find dimensions.
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Calculators
02
Percentage Calculator
Calculate percentages: X% of Y, percentage change, and more. Instant results with formulas shown.
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Calculators
03
Basic Calculator
A simple online calculator with addition, subtraction, multiplication, and division. Supports keyboard input and decimal…
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Calculators
04
Date / Time Calculator
Calculate the difference between dates, add or subtract days, find the day of the week, and more.
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Calculators
05
Age Calculator
Calculate your exact age in years, months, days, hours, and minutes from your date of birth. Free and instant.
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Calculators
06
Countdown Timer
Create a live countdown to any future date — birthdays, holidays, exams, weddings, product launches. Updates in real tim…
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Calculators
IX
Finance Tools
Loans, taxes, interest, and personal finance calculators
03 tools
›
01
Loan Calculator
Calculate monthly loan payments, total interest, and a full amortization schedule. Supports equal monthly and equal prin…
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Finance Tools
02
Compound Interest Calculator
Calculate how your investments grow with compound interest. Supports initial deposit, monthly contributions, and any com…
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Finance Tools
03
Income Tax Calculator (China)
Calculate Chinese individual income tax (IIT) on monthly salary. Includes social insurance, housing fund, and special ad…
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Finance Tools
X
Health Tools
Health and wellness calculators for everyday life
01 tools
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XI
Image Tools
Process and convert images right in your browser
03 tools
›
01
Image Compressor
Compress images in your browser for free. Adjust quality, see file size reduction. No server upload.
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Image Tools
02
Image Resizer
Resize images in your browser for free. Set custom dimensions with aspect ratio lock. No server upload.
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Image Tools
03
SVG to PNG Converter
Convert SVG to PNG in your browser. Customize output size and background color. No server upload.
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Image Tools
XII
Other Tools
Other developer and productivity tools
04 tools
›
01
Favicon Generator
Upload an image to generate favicons in all required sizes. Get link tags and manifest.json snippet.
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Other Tools
02
Meta Tag Generator
Generate SEO-optimized meta tags including Open Graph and Twitter Cards. Preview Google search results.
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Other Tools
03
Placeholder Image Generator
Generate placeholder images of any size with custom colors and text. Download PNG or SVG.
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Other Tools
04
IP Lookup
Look up any IP address to find its geolocation, country, city, ISP, timezone, and more. Shows your own IP by default.
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Other Tools
III · The quiet contract
A tool should do one thing, do it without fuss, and never get in your way.
We don't push notifications. We don't ask you to sign in. We don't move buttons between visits. The same page loads the same way in Mountain View, Shenzhen, and Lagos. If you find your way back here, it'll be because the tools earn it — not because we begged.