Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal in real-time.
Base64 Encode / Decode
Instantly convert plain text to Base64 and vice versa.
Baud Rate Error
Analyze timing errors between clock frequency and target UART baud rates.
| Baud Rate | Ideal Divider | Actual Divider | Actual Baud | Error % |
|---|
Error rates above **2.0%** are generally considered unreliable for stable UART communication. If your error is high, consider using a crystal frequency that is an integer multiple of common baud rates (e.g., **11.0592 MHz** or **14.7456 MHz**).
HTML/XML Beautifier
Clean up and format messy HTML or XML markup.
Bits & Masks
Interactive bit-level manipulator for 64-bit values.
64-Bit Grid
Top-Left: Bit 63 (MSB)
Bottom-Right: Bit 0 (LSB)
C-Array Formatter
Convert data streams into formatted C/C++ byte arrays for firmware integration.
Case Converter
Instantly convert text between different naming conventions.
CIDR / Subnet Calculator
Calculate IP ranges, masks, and network details for IPv4.
Address Range
COBS Framing
Consistent Overhead Byte Stuffing for reliable serial data framing.
Color Converter
Translate hex structures into dynamic web-safe coordinates perfectly.
Invalid Hex Format
CRC & Checksum
Calculate data integrity check values for common polynomials.
Cron Expression Parser
Validate and explain Crontab expressions in plain English.
Human Readable Explanation
Diff Viewer
Compare two text blocks and visualize line-by-line differences.
Circuits & Ohm's Law
Calculate voltage dividers and basic circuit parameters.
Voltage Divider Solver
Vout = Vin * (R2 / (R1 + R2))Ohm's Law Solver (V=IR)
Standard E12 Values
Most common resistors are manufactured in the **E12 series**: 1.0, 1.2, 1.5, 1.8, 2.2, 2.7, 3.3, 3.9, 4.7, 5.6, 6.8, 8.2. Use these for your designs to ensure part availability.
Endianness Swapper
Instantly swap byte order for 16, 32, and 64-bit integer values.
Swapped Results
Visualization
Byte Sequence Swapping
HTML Entity Encoder / Decoder
Convert characters to HTML entities and vice versa for safe web rendering.
Epoch Converter
Convert Unix timestamps to human-readable dates and vice versa.
Timestamp ➔ Date
Date ➔ Timestamp
Timezone Converter
Hash Generator
Generate secure hashes in real-time using common algorithms.
Click to upload file or drag and drop
HTTP Status Codes
Quick reference for HTTP response status codes and their meanings.
String Inspector
Analyze any text string and extract detailed statistics instantly.
JSON Formatter
Validate, format, and structure JSON intelligently.
JWT Decoder
Decode JSON Web Tokens instantly and analyze structured payloads.
Header
Payload
Signature
Integer Limits Reference
Quick-glance reference for standard C/C++ integer types (stdint.h).
| Type | Bits | Minimum Value | Maximum Value | Hex Max |
|---|
Memory Sizes
- Nibble 4 Bits
- Byte 8 Bits
- Word (16-bit) 2 Bytes
- DWord (32-bit) 4 Bytes
- QWord (64-bit) 8 Bytes
Two's Complement
Most modern systems use **Two's Complement** for signed integers. The MSB (Most Significant Bit) acts as the sign bit.
Formula for `n` bits:
Signed: `[-2^(n-1), 2^(n-1) - 1]`
Unsigned: `[0, 2^n - 1]`
Lorem Ipsum Generator
Generate professional placeholder text for mockups and designs.
Markdown Previewer
Write Markdown on the left and see the rendered preview instantly on the right.
MIME Type Lookup
Find MIME types by file extension or vice-versa.
No MIME types found for that search.
Variable & Function Naming
Get naming suggestions for your code based on common conventions.
Booleans / State
Actions / Functions
Collections / Counts
Password Generator
Generate cryptographically secure passwords using the Web Crypto API.
PEM / Certificate Inspector
Inspect and decode X.509 certificates and PEM blocks.
Paste a PEM block to view certificate details.
Protocol Reference
Quick-glance reference for common hardware communication protocols and pinouts.
Fixed-Point (Q-Format)
Convert between floating-point and fixed-point representations (Qm.n).
Configuration
QR Code Generator
Instantly generate high-resolution QR codes dynamically from structured payloads.
Regex Tester
Write, test and debug regular expressions with live match highlighting.
Resistor Color Code
Decode resistance values from 4, 5, and 6-band color codes.
Configuration
Color Multipliers
SQL Formatter
Pretty-print and minify SQL queries for various dialects.
Text Transformer
Sort, filter, and modify text lists in bulk.
Unit Converter
Convert data sizes and time durations across all common units.
Data Size
Time Duration
Length / Distance
Mass / Weight
Speed / Velocity
URL Encoder / Decoder
Safely encode or decode URL components and query parameters.
UUID Generator
Generate cryptographically secure universal identifiers instantly.
YAML ⟷ JSON
Convert between YAML and JSON formats with ease.