All Tools
Browse the full Quiklio catalog — every free online tool in one place.
50 tools
JSON Formatter
Format, validate and beautify JSON for free.
Regex Tester
Test JavaScript regular expressions against text for free, with live highlighting.
Excel to SQL Insert Generator
Convert Excel or CSV rows into ready-to-run SQL INSERT statements for free.
Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes for free.
MD5 Generator
Generate and verify a 32-character MD5 checksum from text in your browser.
SHA256 Generator
Generate a SHA-256 hash from text, for free.
Base64 Encode
Encode text or strings to Base64 instantly and for free.
Base64 Decode
Decode Base64 strings back to readable text instantly.
URL Encode
Percent-encode text or URLs instantly and for free.
URL Decode
Decode percent-encoded URLs and text instantly.
HTML Entity Encode
Escape text to safe HTML entities instantly and for free.
HTML Entity Decoder
Decode HTML entities like & and < back into readable text.
ROT13 Cipher
Encode or decode text with the classic ROT13 letter-substitution cipher.
Morse Code Translator
Translate text to Morse code and Morse code back to text, instantly.
Number Base Converter
Convert numbers between binary, octal, decimal and hexadecimal instantly.
Unix Timestamp Converter
Convert Unix timestamps to human-readable dates and back, for free.
JWT Decoder
Decode JSON Web Tokens into readable header and payload, for free.
Color Converter
Convert colors between HEX, RGB, and HSL formats, for free.
CSV to JSON Converter
Convert CSV files into JSON arrays instantly, right in your browser.
JSON to CSV Converter
Convert a JSON array of objects into a CSV file instantly, in your browser.
YAML Formatter
Format and prettify YAML documents instantly in your browser.
QR Code Reader
Upload an image and instantly decode any QR code — processed entirely in your browser, never uploaded to a server.
TLV Parser
Decode BER-TLV and EMV hex data into a readable tag tree.
ASTM Message Parser
Inspect ASTM-style laboratory messages as records, fields, control characters, and frames.
HTML Formatter
Format and indent HTML code into a clean, readable structure directly in your browser.
HTML Minifier
Minify HTML by removing unnecessary whitespace and comments for a smaller output.
CSS Formatter
Format and indent CSS code into a clean, readable structure directly in your browser.
CSS Minifier
Minify CSS by removing unnecessary whitespace and comments for a smaller output.
JavaScript Formatter
Format and indent JavaScript code into a clean, readable structure directly in your browser.
JavaScript Minifier
Minify JavaScript by removing unnecessary whitespace and comments for a smaller output.
TypeScript Formatter
Format and indent TypeScript code into a clean, readable structure directly in your browser.
XML Formatter
Format and indent XML code into a clean, readable structure directly in your browser.
SQL Formatter
Format and indent SQL code into a clean, readable structure directly in your browser.
Markdown Formatter
Format and indent Markdown code into a clean, readable structure directly in your browser.
GraphQL Formatter
Format and indent GraphQL code into a clean, readable structure directly in your browser.
SCSS Formatter
Format and indent SCSS code into a clean, readable structure directly in your browser.
JSON Minifier
Minify JSON by removing unnecessary whitespace and comments for a smaller output.
JSON to YAML Converter
Convert valid JSON into readable YAML locally in your browser.
JSON to XML Converter
Turn JSON data into escaped, indented XML without uploading it.
XML to JSON Converter
Parse XML into structured, indented JSON privately in your browser.
HTML to Markdown Converter
Convert common HTML markup into clean Markdown directly in your browser.
Base32 Encoder & Decoder
Encode UTF-8 text as RFC 4648 Base32 or decode it back locally.
Base58 Encoder & Decoder
Encode UTF-8 text with the Bitcoin Base58 alphabet or decode it back.
Binary to Text Converter
Convert text to UTF-8 binary bytes and complete 8-bit groups back to text.
ASCII to Text Converter
Convert text to decimal 7-bit ASCII codes and those codes back to text.
Cron Expression Generator
Build and validate standard five-field cron expressions in your browser.
Cron Expression Parser
Validate and explain each field of a standard five-field cron expression.
JWT Generator
Create an HS256-signed JWT from a JSON payload and testing secret locally.
HTTP Status Code Lookup
Search common HTTP response codes by number, name, category or meaning.
MIME Type Lookup
Find common MIME media types by extension, type string or format description.