The Free Tools Directory

Tools
Blog
Submit

Tools
Blog
Submit

The Free Tools Directory

Discover the best free tools on the internet.

Tools
Categories
Blog
Submit a Tool

Developer Tools Tools | The Free Tools Directory

Home/Tools/Developer Tools

💻

Developer Tools

749 tools

Windows FILETIME Converter

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

1 option💻 Developer Tools

ASCII Art Generator

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.

1 option💻 Developer Tools

QR Code Generator

Create QR codes for URLs, text, and contact information

1 option💻 Developer Tools

Color Picker & Converter

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

1 option💻 Developer Tools

Data Format Converter

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

1 option💻 Developer Tools

SQL Formatter

Format and beautify SQL queries with multi-dialect support

1 option💻 Developer Tools

SQL Dialect Translator

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

1 option💻 Developer Tools

World Clock

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

1 option💻 Developer Tools

Mock Data Generator

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

1 option💻 Developer Tools

File Metadata Analyzer

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

1 option💻 Developer Tools

Book Page Size Converter

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

1 option💻 Developer Tools

WebP to GIF Converter

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

1 option💻 Developer Tools

HEIC to JPG Converter

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

1 option💻 Developer Tools

Image Format Converter

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

1 option💻 Developer Tools

package.json Generator

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

1 option💻 Developer Tools

Diff Checker

Compare text, code, or configuration files side by side

1 option💻 Developer Tools

Lorem Ipsum & Placeholder Image Generator

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

1 option💻 Developer Tools

Advanced Word Counter

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

1 option💻 Developer Tools

URL Encoder

Encode and decode URLs with component breakdown and query parsing

1 option💻 Developer Tools

Markdown Preview

Live markdown editor with GitHub Flavored Markdown support

1 option💻 Developer Tools

LLM Token Counter

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

1 option💻 Developer Tools

GUID/UUID Generator

Generate unique identifiers for development and testing

1 option💻 Developer Tools

HTTP Status Codes

Comprehensive HTTP status code reference with search and explanations

1 option💻 Developer Tools

Git Branch Visualizer

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

1 option💻 Developer Tools

← Prev 1 2 3...32 Next →