Free Online Converter Tools
Convert documents, images, media, time, encoding, units, and more instantly. All tools work in your browser, no sign-up required.
Our Free Converter Tools
Text Case & String Converter
Popular
Convert text between uppercase, lowercase, title case, and naming styles like camel, snake, and kebab.
Chinese Number Converter
Popular
Convert Arabic numbers into Chinese lowercase and uppercase numerals for invoices and documents.
Fraction, Decimal & Percentage Converter
Popular
Convert between fractions, decimals, and percentages with simplified results and clear steps.
Roman Numeral Converter
Popular
Convert between Roman numerals and numbers. Transform I, V, X, L, C, D, M to decimal numbers or vice versa.
Number Base Converter
Popular
Convert between binary, octal, decimal, and hexadecimal numbers with optional bit width control.
PDF Converter Suite
Popular
Convert documents and images to PDF with multiple conversion modes and batch support.
Excel to CSV Converter
Popular
Convert Excel spreadsheets (XLSX, XLS) to CSV format. Upload your Excel file and download it as a comma-separated values file.
CSV to Excel Converter
Popular
Convert CSV files to Excel format (XLSX). Upload your CSV file and download it as an Excel spreadsheet.
Text to PDF Converter
Convert plain text files to PDF format. Upload your TXT file and download it as a formatted PDF document.
Markdown to PDF Converter
Convert Markdown files to PDF format. Upload your .md file and download it as a formatted PDF document with proper heading styles.
Markdown to HTML Converter
Popular
Convert Markdown files to HTML format. Upload your .md file and download it as a styled HTML document ready for web publishing.
HTML to PDF Converter
Convert HTML files to PDF format. Upload your HTML file and download it as a PDF document.
Unit Converter - Convert Units Online Free
Popular
Convert between different units of measurement including length, weight, temperature, and file size. Instant conversions with popular unit pairs.
Temperature Conversion & Reference Tool
Popular
Convert Celsius, Fahrenheit, Kelvin, and Rankine with common temperature references.
File Size & Download Time Calculator
Popular
Convert file sizes and estimate download or upload times based on your network speed.
Time & Timestamp Converter
Popular
Convert between Unix timestamps and human-readable dates with timezone support and precision control.
Encoding & Decoding Tool
Popular
Encode and decode Base64, URL, and Unicode text safely in your browser.
Color Converter - HEX RGB HSL
Popular
Convert colors between HEX, RGB, and HSL formats with live preview and copy-ready values.
Image Format Converter & Optimizer
Popular
Convert JPG, PNG, WebP, and SVG images with optional resizing and compression controls.
Image to PDF Builder
Combine multiple images into a single PDF file. Reorder pages and choose page size.
Media Converter - Video & Audio Formats
Popular
Convert between common media formats like MP4, MP3, and GIF with simple quality controls.
Why Use Our Tools?
100% Free
All tools are completely free with no hidden fees or subscriptions.
Privacy First
Everything runs in your browser. Your data never leaves your device.
No Sign-Up
Start using tools immediately without creating an account.