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Developer Tools

Free browser-based utilities that streamline coding tasks with instant text processing, data conversion, and validation capabilities.

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SSH Key Generator (Ed25519 / ECDSA / RSA)

SSH Key Generator Generate SSH key pairs directly in your browser using the Web Crypto API. Supports Ed25519 (recommended), ECDSA P-256/P-384, and RSA 2048/4096. Your private key is generated locally and never leaves your browser. Download keys in OpenSSH format, view fingerprints, and get quick setup commands. How to Use Select your preferred algorithm (Ed25519 ...

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SVG Wave & Divider Generator

SVG Wave & Divider Generator Create beautiful SVG wave section dividers for your website. Choose from 6 wave styles — smooth sine, layered waves, sharp zigzag, rounded hills, asymmetric, and organic blob — customize amplitude, frequency, colors, and layers, then export as SVG code, CSS background, HTML snippet, or downloadable SVG file. Optional CSS animation ...

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Pressure Converter

Pressure Converter Convert between 12 pressure units instantly across SI, engineering, and weather/medical categories. Enter a value in Pascal, bar, atmosphere, psi, torr, or any other supported unit and see all equivalents update in real time. Includes quick-select buttons for common pressures like standard atmosphere, car tire pressure, and blood pressure readings, plus a reference ...

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Loan Affordability Calculator

Loan Affordability Calculator Find out exactly how much you can afford to borrow based on your income and existing debts. Enter your monthly gross income, current debt payments, desired interest rate, and loan term to get your maximum affordable loan amount, monthly payment, and debt-to-income ratios. Includes loan type presets for mortgages, personal loans, and ...

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Docker Container Resource Calculator

Docker Container Resource Calculator Calculate optimal CPU and memory resource limits for Docker containers and Kubernetes pods based on your host capacity and workload type. Enter your available CPU cores and RAM, select a workload preset, and get ready-to-use Docker run flags, Kubernetes resource YAML, and Docker Compose snippets with copy buttons. Handles multi-container scenarios ...

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Audio File Size Calculator

Audio File Size Calculator Calculate the exact file size of audio recordings based on format, bitrate, duration, and quality settings. Supports MP3, AAC, OGG Vorbis, WAV, and FLAC with configurable bitrate, sample rate, bit depth, and channel count. Includes a podcast hosting estimator for monthly storage and bandwidth, a quality comparison table showing all bitrates ...

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Time Zone Converter

Time Zone Converter Convert a date and time across multiple time zones simultaneously. Enter a source date, time, and time zone, then add as many target time zones as needed to see the converted times side by side. Supports 24-hour format toggle and all IANA time zones including DST-aware conversions. How to Use Set your ...

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SVG Pattern Generator (Geometric Tiles)

SVG Pattern Generator Create seamless geometric tile patterns with live preview. Choose from 12 pattern types — dots, lines, grids, hexagons, chevrons, triangles, and more — customize colors, size, spacing, and rotation, then export as SVG code, CSS background, or downloadable SVG file. Everything runs in your browser with instant visual feedback. How to Use ...

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Fake Test Data Generator (JSON / CSV)

Fake Test Data Generator Generate realistic fake test data with a custom schema. Define your fields (names, emails, UUIDs, addresses, dates, and more), set the row count, and export as JSON, CSV, or NDJSON. Everything runs in your browser — no server processing, no data leaves your machine. How to Use Build your schema using ...

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CSS to JavaScript Style Object Converter

CSS to JavaScript Style Object Converter Convert CSS declarations to JavaScript style objects instantly, or reverse the process to go from JS back to CSS. Supports five output formats including React inline styles, React Native StyleSheet, styled-components, Emotion, and plain JS objects. Handles vendor prefixes, CSS variables, numeric value detection, and full CSS rule blocks ...

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Torque Converter

Torque Converter Convert torque values between 10 different units instantly. Enter a value in any unit and see all equivalents update simultaneously across SI, metric, and imperial groups. Covers Newton-meters, kilonewton-meters, kilogram-force meters, pound-force feet, and more. Includes a reference table of common torque specifications for automotive, bicycle, and industrial applications. How to Use Enter ...

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Angle Converter (Degrees, Radians, Gradians, Turns)

Angle Converter Convert angles between 7 different units instantly — degrees, radians, gradians, turns, arcminutes, arcseconds, and milliradians. All units update simultaneously as you type. Includes a visual unit circle diagram drawn on canvas, fractional π notation for radians, trigonometric values at the entered angle, and quick-select buttons for common angles. Perfect for math, physics, ...

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Data Storage Unit Converter (Bits, Bytes, KB, MB, GB, TB)

Data Storage Unit Converter Convert between data storage units instantly with both SI (decimal) and IEC (binary) systems displayed side by side. Enter a value in bits, bytes, kilobytes, megabytes, gigabytes, terabytes, or any other unit and see all equivalents update in real time. Correctly distinguishes between KB (1000 bytes) and KiB (1024 bytes) — ...

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Cooking Measurement Converter

Cooking Measurement Converter Convert between cooking measurements with ingredient-aware accuracy. Unlike generic unit converters, this tool knows that 1 cup of flour weighs differently than 1 cup of sugar. Select from 55+ common ingredients and convert between cups, tablespoons, teaspoons, fluid ounces, milliliters, grams, ounces, pounds, and more. Includes a recipe scaler, fraction display, oven ...

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Protobuf Text to JSON Converter

Protobuf Text to JSON Converter Convert between Protobuf text format and JSON instantly. Parse Protobuf TextProto (the human-readable text representation of Protocol Buffer messages) into JSON, or convert JSON back into Protobuf text format. Supports nested messages, repeated fields, and configurable indentation. How to Use Select your conversion direction (Protobuf Text → JSON or JSON ...

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Tarot Birth Card Calculator

Tarot Birth Card Calculator Discover your tarot birth card — the Major Arcana card (or pair) that represents your core personality archetype and life themes. Enter your birthdate and instantly see your birth card pair, personality traits, strengths, challenges, and elemental associations based on traditional numerological calculation. How to Use Enter your birth date using ...

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EAN-13 / UPC-A Barcode Generator

EAN-13 / UPC-A Barcode Generator Generate scannable barcodes in EAN-13, UPC-A, EAN-8, Code 128, and Code 39 formats. Enter your data, customize dimensions and colors, and download as PNG or SVG. Auto-calculates check digits for EAN and UPC formats. Everything runs in your browser — no server processing. How to Use Enter the barcode data ...

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ISBN Validator & Checksum Checker

ISBN Validator & Checksum Checker Validate ISBN-10 and ISBN-13 numbers instantly with precise checksum verification. This tool checks whether an ISBN is mathematically valid, converts between ISBN-10 and ISBN-13 formats, auto-formats with proper hyphenation, and identifies registration groups. Perfect for publishers, librarians, booksellers, and developers working with book metadata. How to Use Enter a single ...

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Prisma Schema Formatter

Prisma Schema Formatter Format your Prisma schema files instantly with proper indentation, column-aligned fields, and consistent styling. This tool applies the same formatting conventions as prisma format — aligning field names, types, and attributes into clean columns — entirely in your browser. Paste messy or inconsistent .prisma schemas and get clean, readable output in one ...

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Dotenv to JSON Converter (Bidirectional)

Dotenv to JSON Converter Convert between .env files and JSON instantly with this bidirectional converter. Paste your .env content to get a clean JSON object, or paste JSON to generate properly formatted KEY=VALUE pairs. Handles quoted values, inline comments, multiline strings, export prefixes, and supports nested JSON output by splitting keys on double underscores (__). ...

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