Developer Tools

Encode and decode Base64, Hex, Binary, and other formats with file support

Decode and analyze JSON Web Tokens with security validation

Generate Software Bill of Materials (SBOM) in CycloneDX and SPDX formats for supply chain security and EO 14028 compliance

Convert CSV files to JSON format instantly with browser-based processing

Convert Excel spreadsheets to JSON with multi-sheet support and custom formatting options

Convert YAML to JSON or JSON to YAML with full support for comments and anchors

Convert between Unix timestamps, Windows FILETIME, LDAP, WebKit/Chrome, and Cocoa/Mac timestamps with batch support

Convert Windows FILETIME, LDAP, and Active Directory timestamps to human-readable dates. Batch convert lastLogon, pwdLastSet, and accountExpires values.

Convert text and images to ASCII art. Text-to-ASCII with 200+ FIGlet fonts, image-to-ASCII with color output, edge detection, and dithering. Plus shapes and a pre-made art library.

Create QR codes for URLs, text, and contact information

Pick colors and convert between HEX, RGB, HSL, and HSV formats

Convert between JSON, YAML, XML, TOML, and CSV with real-time validation

Format, validate, and minify JSON with syntax highlighting

Validate JSON with detailed error messages and tree visualization

Format and beautify SQL queries with multi-dialect support

Translate SQL between dialects - auto-detects source dialect and converts syntax for MySQL, PostgreSQL, SQL Server, Oracle, SQLite, BigQuery, Redshift, and Snowflake

Free timezone meeting planner for distributed teams. Find overlap windows across 38 time zones, convert UTC/EST/PST/GMT, schedule international calls.

Generate realistic fake test data (names, emails, addresses, credit cards, UUIDs) with JSON, CSV, and SQL export

Extract EXIF/GPS from photos, PDF properties, audio ID3 tags, and Office document metadata. View GPS on Google Maps. Export CSV reports.

Convert page counts between book trim sizes (8.5×11 to 6×9), calculate words per page, estimate spine width, and verify KDP compatibility

Convert WebP images to GIF format including animated WebP support. Free, fast, and works in your browser.

Convert photos to PDF on iPhone, Android, or desktop. Mobile-optimized tool for combining images into PDF documents.

Convert iPhone HEIC photos to JPG format for Windows compatibility. Batch conversion with privacy-first design.

Universal image converter supporting 10+ formats: JPEG, PNG, WebP, GIF, HEIC, AVIF, TIFF, BMP, ICO, SVG, and PDF output.

Generate package.json files with presets for React, Next.js, Express, testing, Tailwind, and other common configurations

Generate cryptographic hashes (MD5, SHA-256, SHA-512) for files and text. Check malware with VirusTotal integration.

Debug OAuth 2.0 and OpenID Connect flows with JWT decoder, PKCE generator, flow tester, and error troubleshooting

Generate Content Security Policy headers with nonce/hash support and validation

Compare text, code, or configuration files side by side

Generate placeholder text and images for designs. Create Lorem Ipsum in 6 themes plus placeholder images from 7 providers with social media presets.

Real-time word counter with readability analysis, SEO optimization, keyword density, writing goals, and productivity tracking

Encode and decode HTML entities with XSS prevention analysis

Test regular expressions with pattern library and explanations

Encode and decode URLs with component breakdown and query parsing

Live markdown editor with GitHub Flavored Markdown support

Generate Subresource Integrity hashes for scripts and stylesheets

Count tokens in text for GPT-4, Claude, Llama, and other LLMs. Estimate API costs and optimize prompts for token limits

Detect and analyze CORS misconfigurations, security vulnerabilities, and policy issues

Detect exposed API keys, tokens, private keys, and database credentials in code. 100% client-side scanning.

Interactive developer tool for constructing, sending, and analyzing HTTP requests directly from the browser

Generate unique identifiers for development and testing

Comprehensive HTTP status code reference with search and explanations

Compare Git branching strategies visually. Understand GitFlow, GitHub Flow, and trunk-based development with diagrams and commands.

Generate temporary webhook endpoints, capture payloads, and validate signatures for GitHub, Stripe, Shopify, Twilio, and Slack

Parse user agent strings online free. Detect browser, OS, device type, and identify bots. Analyze Chrome, Firefox, Safari, Googlebot user agents.

Model API throttling budgets, per-client limits, and queue sizing to avoid 429 errors

Generate domain variations across all TLDs for brand protection and research

Generate customized .gitignore files by combining templates for languages, frameworks, IDEs, and operating systems

Generate aws s3 sync, cp, and mv commands with the right flags. Build complex S3 CLI commands without memorizing syntax

Generate webhook payloads with HMAC signatures for Stripe, GitHub, Slack, Shopify, Twilio, SendGrid, Discord and more

Generate Exchange Online PowerShell commands for mailbox management, message tracing, distribution groups, and security audits

Generate PowerShell commands for Windows Updates using PSWindowsUpdate, WUAPI, usoclient, and wuauclt with scheduling options

Generate Microsoft Graph PowerShell commands for Azure AD user management, group operations, MFA status, and license reporting

Generate Python requirements.txt files with popular package presets for Django, FastAPI, Data Science, ML, and more

Generate optimized Dockerfiles with multi-stage builds, security best practices, and templates for Python, Node.js, Go, and Java

Generate .env files with templates for Next.js, Express, Django, Laravel, AWS, Stripe, Firebase, and other platforms

Validate K8s manifests against CIS Kubernetes Benchmark security checks. Detect privileged containers, missing resource limits, and misconfigurations.

Analyze Terraform plans for security risks, blast radius, and dependencies. Reduce production incidents by understanding infrastructure changes before applying them.

Visual Docker command generator for run, build, and compose with security best practices and preset templates

Searchable Git workflow cookbook with safe undo commands and best practices

Parse, validate, compare, and increment semantic versions with npm-style range checking

Build and validate cron expressions with visual interface