DevBolt

.env File Validator

Validates .env files for syntax errors, duplicate keys, security risks, and .env.example export.

.env to Docker/K8s Converter

Converts .env files to Docker Compose env blocks, Kubernetes ConfigMaps, and docker run flags.

.gitignore Generator

Generates .gitignore files from 50+ templates across major languages and ecosystems.

AI Model Comparison

Compares 23 AI models and 5 coding IDEs — pricing, context windows, capabilities.

AI Prompt Builder

Builds structured AI prompts with templates and variables for OpenAI, Anthropic, and Gemini.

Code Complexity Analyzer

Measures cyclomatic complexity, cognitive complexity, nesting depth, and maintainability index.

Code Screenshot Generator

Creates code screenshots with 8 themes, syntax highlighting, and customisable backgrounds.

Compression Tester

Compares Brotli, Gzip, and Deflate compression ratios for text content.

Cron Expression Parser

Parses cron schedules into plain English with the next several scheduled run times.

Crontab Generator

Builds cron expressions visually with frequency, time, and day-of-week controls.

Docker Compose Validator

Validates and formats Docker Compose files, checking services, networks, and volumes.

Dockerfile Validator

Validates and lints Dockerfiles for syntax errors, security issues, and best practices.

ESLint to Biome Converter

Converts ESLint configs to Biome — maps 100+ rules from core, TypeScript, React, and import plugins.

Git Command Builder

Builds git commands visually with 80+ cheat-sheet entries covering branching, merging, and stashing.

Git Diff Viewer

Renders unified git diff output with syntax highlighting and side-by-side or inline display.

GitHub Actions Validator

Validates GitHub Actions workflow YAML for syntax, triggers, jobs, and deprecated actions.

GraphQL to TypeScript

Converts GraphQL SDL schemas to TypeScript interfaces, types, enums, and operations.

HTTP Status Codes Reference

Complete reference of HTTP status codes with explanations, common causes, and use cases.

JSON Formatter

Formats, validates, and minifies JSON with structural error reporting.

JSON Mock Data Generator

Generates realistic fake JSON data for API testing with 30+ field types and schema builder.

JSON Visualizer

Visualises JSON as an interactive tree — collapsible nodes, search, path copy, and stats.

JSON to Code Generator

Generates typed structs and classes from JSON in Go, Python, Java, C#, Dart, Rust, Swift, and Kotlin.

JSON to GraphQL Schema

Generates GraphQL schema definitions from JSON with type inference and Query/Mutation generation.

JSON to Zod Converter

Converts JSON or JSON Schema to Zod validation schemas with $ref resolution and format constraints.

JavaScript / TypeScript Playground

Runs JavaScript and TypeScript code in the browser with instant console output.

Kubernetes YAML Validator

Validates Kubernetes manifests for syntax, required fields, best practices, and security.

LLM Token Counter

Counts tokens and estimates API costs for GPT, Claude, Gemini, and other LLMs.

MCP Config Builder

Builds MCP configuration files visually for Claude Desktop, Cursor, VS Code, and Windsurf.

Markdown Preview

Writes and previews Markdown with live rendering and syntax highlighting.

Markdown Table Generator

Builds Markdown tables visually with CSV import and alignment controls.

Nginx Config Generator

Generates nginx config files — server blocks, SSL, reverse proxy, gzip, load balancing, security headers.

Number Base Converter

Converts numbers between binary, octal, decimal, and hexadecimal bases.

Open Graph Preview

Previews and debugs Open Graph, Twitter Card, and SEO meta tags for social sharing.

OpenAPI to TypeScript

Converts OpenAPI 3.x and Swagger 2.0 specs to TypeScript interfaces and operation types.

QR Code Generator

Generates customisable QR codes from text or URLs.

README Generator

Generates professional GitHub README.md files with badges, installation, and usage sections.

Regex Generator

Generates regex patterns from natural-language descriptions with visual composer and live tester.

SQL Playground

Runs SQL queries against a WebAssembly SQLite database — JOINs, CTEs, window functions, aggregations.

SQL to TypeScript / Prisma / Drizzle

Converts SQL CREATE TABLE statements to TypeScript interfaces, Prisma schemas, and Drizzle definitions.

SVG to JSX Converter

Converts SVG to JSX or a React/TypeScript component with forwardRef, memo, and props spread.

TypeScript 6.0 Migration Checker

Analyses tsconfig.json for TS 6.0 breaking changes, deprecated options, and readiness grade.

TypeScript to JavaScript

Strips TypeScript types, interfaces, enums, and generics to produce clean JS output.

URL Encoder & Decoder

Encodes and decodes URLs using encodeURIComponent and encodeURI.

URL Parser

Parses URLs into protocol, host, path, and query-string components.

URL Slug Generator

Converts text into URL-friendly slugs with Unicode transliteration and bulk mode.

XML Formatter

Formats, beautifies, validates, and minifies XML documents.

Zod Schema Generator

Generates Zod validation schemas from JSON with auto-detection of common formats.

cURL to Code

Converts cURL commands to JavaScript, Python, Go, PHP, Ruby, and Java code.

package.json Generator

Generates package.json visually with framework presets, dependency editor, and scripts.

robots.txt Generator

Generates robots.txt files with crawl rules for Googlebot, Bingbot, AI bots, and more.

tsconfig.json Builder

Builds TypeScript tsconfig.json visually with framework presets and inline explanations.

Border Radius Generator

Designs CSS border-radius visually with per-corner controls and unit selection.

Box Shadow Generator

Designs CSS box shadows visually with multi-layer stacking and live preview.

CSS Animation Generator

Builds CSS keyframe animations visually with presets and live preview.

CSS Clip-path Generator

Creates CSS clip-path shapes visually with 13 shape presets and interactive preview.

CSS Filter Generator

Builds CSS filter effects visually — blur, brightness, contrast, hue-rotate, sepia, drop-shadow.

AI Code Security Scanner

Scans JavaScript and TypeScript for hardcoded secrets, injection, XSS, SSRF, and 20+ vulnerability checks.

CSP Header Builder

Builds Content Security Policy headers visually with framework presets and security analysis.

File Hash Calculator

Computes MD5, SHA-1, SHA-256, SHA-384, and SHA-512 file hashes via drag-and-drop.

HTTP Request Builder

Builds HTTP requests visually and generates client code in cURL, JavaScript, Python, Go, Rust, and PHP.

Hash Generator

Generates SHA-1, SHA-256, SHA-384, and SHA-512 hashes of input text.

CSV ↔ JSON Converter

Converts between CSV and JSON with custom delimiters and column handling.

HTML to JSX Converter

Converts HTML to JSX — class→className, inline styles to objects, self-closing tags, SVG attributes.

HTML ↔ Markdown

Converts between HTML and Markdown bidirectionally.

JSON to CSV Converter

Converts JSON arrays to CSV with nested-object flattening and column selection.

JSON to SQL Converter

Code Minifier & Beautifier

Minifies and beautifies JavaScript, CSS, and HTML code.

JSON Diff

Compares two JSON objects and reports structural differences with key-level granularity.

JSON Path Tester

Tests JSONPath expressions against JSON data with real-time evaluation.

JSON Schema Validator

Validates JSON data against JSON Schema (Draft 07) with detailed error reporting.

OpenAPI / Swagger Validator

Base64 Codec

Encodes and decodes Base64 strings with Unicode support.

Encode / Decode Multi-Tool

Base64, Base32, Hex, Binary, URL, and HTML encoding and decoding in one tool.

HTML Entity Encoder

Encodes and decodes HTML entities, special characters, and symbols.

Image to Base64

Converts images to Base64 data URIs and decodes Base64 back to images.

Text ↔ Binary Converter

Converts text to binary, hex, octal, or decimal — with UTF-8 round-trip.

ASCII Art Text Generator

Converts text into ASCII art with 7 font styles and comment wrapping for code.

Diff Checker

Compares two text blocks and highlights the differences inline or side-by-side.

Word & Character Counter

Counts words, characters, sentences, and estimates reading time for any text.

Case Converter

Converts text between camelCase, snake_case, kebab-case, and other common case styles.

Lorem Ipsum Generator

Generates placeholder text for designs and layouts.

Color Contrast Checker

Checks WCAG 2.1 colour contrast ratios for AA and AAA accessibility compliance.

Color Palette Generator

Generates harmonious colour palettes using colour-theory algorithms.

Date Format Tester

Tests date format patterns for strftime, date-fns, Moment.js, Go, and Java with live preview.

Epoch Converter

Converts Unix timestamps to human dates and back with time-zone control.

Placeholder Image Generator

Generates custom placeholder images for wireframes and mockups at any size and colour.

SVG Optimizer

Optimises SVGs by removing metadata, editor data, and unused attributes.

Aspect Ratio Calculator

Calculates aspect ratios, resizes preserving proportions, with device presets for phones, tablets, monitors.

Chmod Calculator

Calculates Unix file permissions interactively with an owner/group/other permission matrix.

Color Converter

Converts colours between HEX, RGB, and HSL formats.

IP / CIDR Toolkit

Subnet calculator, VLSM divider, IP-range-to-CIDR converter, and IP address classifier.

Image Compressor

Compresses and resizes images with adjustable quality for JPEG, WebP, and PNG.

Privacy Policy Generator

Generates a customised privacy policy with GDPR, CCPA, cookies, and payment sections.