All Tools

All Conversion Tools

Browse our complete collection of free online conversion tools for developers and code enthusiasts.

40 tools found

Binary & Text Converters

Binary Translator

Convert text to binary (0s and 1s) and vice versa

Binary -> Decimal

Convert between binary and decimal number systems

Binary -> Hexadecimal

Convert between binary and hexadecimal values

Binary -> Text

Direct binary to text conversion

Text -> Binary

Convert text to binary code instantly

Decimal to Binary Converter

Convert base-10 decimal integers into base-2 binary instantly. Great for programming, computer science homework, and number-system practice.

Hex to Binary Converter

Convert hexadecimal values into binary bits. Each hex digit expands to a precise 4-bit binary group.

UTF-8 to Binary Converter

Encode text, symbols, and Unicode characters as UTF-8 binary bytes. Helpful for understanding how real-world text is stored by computers.

Binary to ASCII Converter

Decode 8-bit binary byte groups into ASCII characters. Paste binary bytes and get readable text instantly.

Morse Code Translator

Convert text to Morse code, decode Morse, and play tones

Number Base Converters

Base 2-62 Converter

Convert between any bases from 2 to 62

Text ↔ Hex Converter

Encode any Unicode text as UTF-8 hexadecimal bytes, or decode a hexadecimal byte sequence back into readable text.

Octal ↔ Decimal Converter

Convert signed octal integers to decimal and decimal integers to octal without losing precision, even for values far beyond JavaScript’s safe number range.

Two’s Complement Converter

Convert signed decimal, unsigned decimal, and exact binary bit patterns across 8, 16, 32, and 64-bit widths with strict range checks.

IEEE-754 Float Converter

Convert float32 or float64 values between decimal, exact binary bits, and hexadecimal while inspecting sign, exponent, mantissa, and special classifications.

Binary Calculator

Add, subtract, multiply, or divide signed binary integers of arbitrary practical length and view exact binary, decimal, hexadecimal, quotient, and remainder results.

Bitwise Calculator

Apply AND, OR, XOR, NOT, left shift, and right shift to 8, 16, 32, or 64-bit values with explicit signed and unsigned interpretation.

Developer Tools

Base64 Encoder/Decoder

Encode and decode Base64 strings

URL Encoder/Decoder

Encode and decode URL special characters

Image to Base64 Converter

Upload an image and convert it to a Base64 Data URL locally in your browser.

Base64 to Image Decoder

Paste Base64 image data to preview and download the decoded image locally.

JWT Decoder

Decode JSON Web Token header and payload data locally. Useful for debugging auth flows, API integrations, and token claims.

HTML Entity Encoder / Decoder

Convert reserved HTML characters to entities and decode entities back to readable text for templates, docs, and debugging.

Base32 Encoder/Decoder

Encode and decode RFC 4648 Base32 with optional padding and UTF-8 support

Base58 Encoder/Decoder

Convert UTF-8 text with the Bitcoin Base58 alphabet and preserve leading zero bytes

Base85 Encoder/Decoder

Encode and decode Adobe-style Ascii85 with delimiters, whitespace, and z shorthand

Base64url Encoder/Decoder

Use RFC 4648 URL-safe Base64 with optional padding and strict validation

Unicode Escape/Unescape

Convert text, Unicode code points, and supported escape forms safely

Punycode Converter

Convert internationalized domain labels and complete domains to and from Punycode

Caesar Cipher

Encode or decode ASCII letters with a configurable shift and ROT13 shortcut

Data, Identifiers & Cryptography

JSON Formatter, Minifier and Validator

Format, compact and validate JSON without sending the document to a server. The parser reports a practical line and column for invalid syntax and warns when integer literals exceed JavaScript’s safe integer range.

JSON to YAML Converter

Convert JSON and YAML in either direction with the existing js-yaml library, a restricted JSON-compatible schema and explicit checks for dangerous object keys, unsupported values and cyclic aliases.

JSON to CSV Converter

Convert arrays of JSON objects to RFC 4180-style CSV and parse CSV back into JSON records, with explicit handling for headers, empty cells, nested values, embedded line breaks and spreadsheet formula injection.

Unix Timestamp Converter

Convert Unix seconds, Unix milliseconds and strict timezone-qualified ISO timestamps into UTC, local time and both epoch units with explicit mode selection and conservative auto-detection.

Secure UUID v4 Generator

Generate one or many RFC 4122-style UUID version 4 identifiers with crypto.randomUUID when available and a crypto.getRandomValues fallback, plus optional uppercase and hyphen formatting.

SHA Hash Generator for Text and Files

Calculate SHA-1, SHA-256, SHA-384 or SHA-512 digests with the browser Web Crypto API, using UTF-8 text or local file bytes and Hex or Base64 output.

HMAC Generator with SHA-256, SHA-384 and SHA-512

Create a keyed HMAC for UTF-8 data with the browser Web Crypto API and Hex or Base64 output. Keys and messages remain in the current tab and are never intentionally persisted by this tool.

Reference Tables

ASCII Table

Look up ASCII characters by decimal, hexadecimal, and binary code. This table covers the full 0-127 standard ASCII range.

Bit vs Byte

A bit stores one binary value. A byte groups eight bits together.

Binary Alphabet A–Z

Look up A–Z and a–z with ASCII decimal, 8-bit binary, and hexadecimal values.

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