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Free Online Converter Tools

32 tools

Convert between formats instantly with our free online converter tools. Whether you need to encode images as Base64, translate text to Morse code, switch between JSON and CSV, or convert hex to decimal, our converters handle every transformation without uploading your data anywhere.

Zero uploads — all conversion happens locally in the browserSupports dozens of format pairs in a single tool collectionCopy results to clipboard with one click

Converter tools

32
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Time Zone Converter

Free time zone converter and world clock. Convert times across multiple cities and time zones simultaneously with daylight saving support.

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Base64 Encoder / Decoder

Free Base64 encoder and decoder online. Encode text to Base64 or decode Base64 strings back to plain text instantly in your browser.

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URL Encoder / Decoder

Free URL encoder and decoder. Percent-encode special characters for safe URL use, or decode percent-encoded URLs back to readable text.

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Color Converter

Free color format converter. Convert colors between HEX, RGB, HSL, and HSV instantly with live color preview and one-click copy.

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Data Size Converter

Free data storage size converter. Convert between bytes, KB, MB, GB, TB, and PB. Supports both binary (1024) and decimal (1000) bases.

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JSON to CSV Converter

Free JSON to CSV converter. Paste JSON data and instantly download or copy a formatted CSV. Handles nested objects and arrays.

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CSV to JSON Converter

Free CSV to JSON converter. Transform comma-separated values into clean JSON format. Supports custom delimiters and header rows.

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CSV to SQL Converter

Free CSV to SQL converter. Convert CSV data into INSERT statements for MySQL, PostgreSQL, or SQLite. Set table name and column types.

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Image to Base64 Data URI

Free image to Base64 converter. Upload any PNG, JPG, SVG, or GIF and get its Base64-encoded data URI for embedding in HTML or CSS.

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QR Code Generator

Free QR code generator. Create QR codes for text, URLs, Wi-Fi, vCard contacts, email, SMS, and phone links. Download as PNG or SVG.

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Barcode Generator

Free barcode generator. Create Code 128, Code 39, EAN-13, EAN-8, UPC, and ITF-14 barcodes with PNG and SVG download support.

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Text to Binary Converter

Free text to binary converter. Convert any ASCII text to binary code (0s and 1s) with optional separators and grouping.

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Binary to Text Converter

Free binary to text converter. Decode binary code (0s and 1s) back to readable ASCII text. Handles 8-bit and space-separated input.

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Text to Hex Converter

Free text to hexadecimal converter. Convert plain text to hex encoding with optional delimiters. Useful for encoding and debugging.

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Hex to Text Converter

Free hex to text converter. Decode hexadecimal strings to plain ASCII or UTF-8 text instantly in your browser.

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Text to Octal Converter

Free text to octal converter. Encode ASCII text as octal (base-8) numbers. Useful for Unix file permissions and encoding tasks.

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Octal to Text Converter

Free octal to text converter. Decode octal number sequences back to readable ASCII text instantly in your browser.

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Octal to Decimal Converter

Free octal to decimal converter. Convert octal (base-8) numbers to decimal (base-10) instantly. Supports bulk conversions.

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Decimal to Octal Converter

Free decimal to octal converter. Convert decimal integers to their octal (base-8) representation instantly in your browser.

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Decimal to Hex Converter

Free decimal to hexadecimal converter. Convert base-10 integers to hex (base-16) with uppercase or lowercase output.

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Hex to Decimal Converter

Free hexadecimal to decimal converter. Convert hex numbers (base-16) to decimal (base-10). Handles 0x prefix and plain hex.

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Base64 to Hex Converter

Free Base64 to hex converter. Decode Base64 strings and output raw hexadecimal. Useful for cryptographic and encoding workflows.

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Hex to Base64 Converter

Free hex to Base64 converter. Encode hexadecimal strings into Base64 format. Useful for certificate handling and binary encoding.

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Character to ASCII Converter

Free character to ASCII code converter. Get the ASCII decimal or Unicode code point for any character, including extended Unicode.

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ASCII Character Chart

Free ASCII code to character converter. Enter any decimal ASCII code and see its corresponding character. Supports extended ASCII.

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Morse Code Generator

Free Morse code translator. Convert English text to Morse code (dots and dashes) or decode Morse code back to readable text.

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HTML Entity Encode / Decode

Free HTML entity encoder and decoder. Convert special characters to HTML entities or decode entities to plain text for web development.

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Merge PDF Files

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Split PDF Pages

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Rotate PDF Pages

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Add PDF Watermark

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PDF Info & Page Count

Frequently Asked Questions

Do I need to upload my file to use these converters?

No. All conversions run in your browser using JavaScript. Your files and text never leave your device.

Can I convert large files?

Browser-based tools work well for most use cases. Very large files (over a few MB) may be slower depending on your device, but there is no hard size limit imposed by the server.

Which Base64 variant do the tools use?

Standard RFC 4648 Base64 with the = padding character. The URL-safe variant (using - and _ instead of + and /) can be toggled in the Base64 Converter tool.