Tools

run quick timers with presets and completion feedback

build cron schedules with beginner-friendly presets and preview upcoming run times

convert date strings to Unix timestamps

convert date strings to UTC text

convert between nanoseconds, microseconds, milliseconds, seconds, and larger time units including months and years

compare multiple timezones with live clocks, running seconds, and a shared hourly timeline

run configurable focus sessions with automatic short and long break cycles

track elapsed time with lap splits and quick reset controls

convert between timestamps and timezone-formatted dates

estimate upload or download time using data size and bandwidth values

track multiple places with live digital clocks and saved 12/24-hour settings

convert between wei, gwei, ether, and extended ethereum denomination units

convert between lamports, microSOL, milliSOL, and SOL units

convert JSON or .env values into a base64-encoded Kubernetes Secret manifest YAML

convert network throughput between bit and byte rate units

convert between decimal and binary storage units from bytes through yottabytes

convert integers across binary, octal, decimal, and hexadecimal formats

edit markdown with live preview, fullscreen mode, and local draft persistence

edit Mermaid diagram syntax with live SVG preview, zoom controls, fullscreen mode, and local draft persistence

sign and verify webhook payloads using HMAC SHA algorithms

generate common barcode formats from text values

scan barcode values from camera or uploaded images

generate CSRs/certificates and inspect PEM metadata

generate realistic fake datasets for testing, demos, and local development

generate signed JWT tokens using plain secrets, RSA private keys, or ECDSA private keys

generate markdown table of contents links from markdown headings

generate secure passwords and tokens with entropy scoring

generate QR code images from text or URLs

scan and decode QR payloads from camera or images

generate RSA/ECDSA keypairs and inspect PEM/OpenSSH key metadata

generate UUID v1/v3/v4/v5/v6/v7/v8, ULID, or NanoID identifiers

validate payloads against schema and generate sample data

analyze JSON size breakdown by path and structure

decode tokens, verify signatures, inspect claims, and compare key metadata

analyze OpenAI token boundaries, IDs, and token counts

test JavaScript regex patterns with live highlighting, captures, and explanations

compare two text blocks with side-by-side diff analysis and character-level highlights

format CSS code with indentation

pretty-print JSON

format SQL queries

format XML markup

minify CSS source

minify JSON text

collapse SQL whitespace

remove XML formatting whitespace

escape quotes and slashes

convert ASCII text to hexadecimal bytes

encode text into Base64

encode text as HTML entities

encode all characters into entities

apply ROT13 substitution cipher

defang URLs for safe sharing

URL-encode text

encode URI entities while preserving URL separators

decode Base64 text

decode hexadecimal bytes to text

decode HTML entities

decode JWT header and payload

convert PHP serialized payloads to JSON

unescape slashed quotes and backslashes

decode URL-encoded text

decode URI entity text

restore defanged URLs

calculate an MD5 hash

calculate a SHA1 hash

calculate a SHA256 hash

calculate a SHA512 hash

convert text to camelCase

convert text to lowercase

convert text to kebab-case

convert text to snake_case

alternate lowercase and uppercase letters

convert text to Start Case

convert text to uppercase

convert Android XML strings to iOS format

convert binary numbers to decimal

convert CSV data to JSON arrays

convert decimal numbers to binary

convert decimal numbers to hexadecimal

decode fish shell hex-encoded paths

convert hexadecimal numbers to decimal

convert hex colors to rgb()

convert iOS strings format to Android XML

convert JSON arrays to CSV

convert JSON objects to URL query strings

convert JSON to YAML

convert URL query strings to JSON

convert YAML to JSON

sort lines using natural numeric order

sort object keys recursively

sort lines alphabetically

convert text into stylized ASCII art banners

collapse repeated whitespace into single spaces

remove accents and diacritics

generate placeholder text by word count

prefix each line with Markdown quote syntax

remove duplicate lines

replace typographic punctuation with plain ASCII

reverse line order

reverse characters in text

randomize line order

trim leading and trailing whitespace

count all characters in input text

count lines in multiline input

count words separated by whitespace