Programmer Online tools

JSON to Java Entity Class Generation Tool

JSON to Java entity generator converts JSON payloads into Java model classes for backend development.

JSON Code Validation and Formatting

JSON validator and formatter checks syntax errors and beautifies JSON for easier reading and debugging.

JSON to C# Conversion

JSON to C# converter generates C# class definitions from JSON data structures automatically.

JSON compression and escaping tool

JSON compress and escape tool minifies JSON and escapes characters to reduce payload size and improve transfer efficiency.

Translate the result directly in English please: Excel to Json.

Excel to JSON converts spreadsheet data into JSON format quickly for APIs, apps, and data processing.

Sorting JSON.

JSON sort tool orders JSON data for easier analysis, comparison, and debugging of structured content.

Convert JSON to XML

Convert JSON to XML and XML to JSON for interoperability between APIs, configs, and data pipelines.

Deserialization-based tool for generating JSON and code.

Deserialize JSON and generate corresponding code structures for development and data integration tasks.

MD5 generation

MD5 generates a fixed 128-bit hash from any input message. It is fast and widely used for checksums and data integrity checks, though not recommended for new security designs.

HTML Filtering

HTML filter removes disallowed tags and attributes to improve page security and readability.

HTML Code Debugging

HTML debugger detects and fixes errors in HTML markup for cleaner, valid page structure.

Regular Expression Testing Tool

Regex tester validates regular expressions against sample text and helps locate matching errors quickly.

Image BASE64 Conversion

Image Base64 converter encodes images to Base64 strings and decodes Base64 back into image files.

Base64 encoding/decoding

Base64 encoder and decoder converts text or binary data to Base64 and back for safe transmission and storage.

Morse code encryption

Morse code encoder converts input text into Morse code quickly for learning, signaling, and fun projects.

HTML code conversion

HTML code converter transforms HTML into Markdown, BBCode, and other formats for cross-platform publishing.

Escape encryption / UnEscape decryption

Escape and UnEscape tools encrypt or decrypt strings to help protect sensitive text in web applications.

JS obfuscation

JavaScript obfuscation protects client-side code by making it harder to read and reverse engineer.

Online URL encoding and decoding.

URL encode and decode special characters for safe web transmission. Convert spaces and symbols to percent-encoded form and restore them back to readable URLs.

Unicode to Chinese translation.

Convert Unicode escape sequences into readable Chinese characters and text for debugging and content processing.

Convert database SQL to POJO

Convert database table structures into Java POJO classes to speed up backend development and reduce boilerplate coding.

HTML/Markdown converter tool

HTML and Markdown converter switches between HTML and Markdown formats for faster writing and publishing workflows.

ip to int, ip to number

Convert IP addresses to integer values for easier calculation, comparison, and storage in databases or scripts.

Hash/Hashing

Hash tools generate fixed-length digests from messages for digital signatures, integrity checks, and cryptographic security tasks.

Base conversion

Number base converter converts values between binary, octal, decimal, and hexadecimal systems quickly and accurately.

HTML escape tool

HTML escape tool converts special characters into HTML entities to prevent display and encoding problems in web pages.

Convert HTML to string (with backslash concatenation).

Convert HTML text into escaped string form with backslash concatenation for safe use in code and data transfer.

Convert HTML to a JavaScript string.

Convert HTML code into JavaScript string format for easy use in scripts and web development projects.

SQL compression, formatting

SQL formatter and compressor optimizes and beautifies SQL statements for cleaner, more efficient database scripts.

XML formatting/compression

Format or compress XML files quickly to improve readability or reduce file size for faster processing.

JS/HTML formatting

JS and HTML formatter auto-indents and beautifies JavaScript and HTML code for easier reading and maintenance.

CSS formatting

CSS formatter beautifies, cleans, and optimizes stylesheet code to improve readability, load performance, and code quality.

HTML Compression

HTML compression removes unnecessary whitespace and characters to reduce page size, improve load speed, and save bandwidth.

Online Unix Timestamp Conversion Tool

Unix timestamp converter translates Unix seconds since 1970-01-01 UTC into readable dates and back.

Robots.txt File Generation Tool

Robots.txt generator builds standards-compliant robots files to guide search engine crawling.

Bulk URL Link Generator

Bulk URL generator creates many links at once for site structure, testing, and navigation setup.

CHMOD Command Calculator

CHMOD calculator computes Linux file and directory permission numbers from selected access flags.

Meta Tag Generator

Meta tag generator creates SEO-friendly meta tags quickly for better search engine optimization.

OPEN Parameter Generator and Popup Window Generator

Popup window generator creates customized window.open parameters and popup links for web interfaces.

Syntax Highlighting

Syntax highlighting colors source code by language elements to improve readability while coding.

User Agent Information Viewing

User Agent viewer displays your browser UA string, version details, and supported features.

MagicBytes (File Signature)

MagicBytes file signature tool identifies file types by reading header bytes for format verification.

IT Term Pronunciation

IT term pronunciation helps you learn correct pronunciation of common technology vocabulary.

HTML Special Characters Table

HTML special characters table helps you find and copy symbols and entities for web pages.

Keyboard Key Values (Keycode, ASCII Codes)

Keyboard keycode reference shows key names and ASCII values for development and debugging.

Website 301 redirect code generator.

301 redirect code generator creates permanent redirect rules quickly for website migration and SEO maintenance.

Convert CSV to HTML table.

CSV to HTML table converter turns CSV files into HTML tables for web display and reporting.

Multilingual domain name decoding

Multilingual domain converter encodes internationalized domain names (IDN) into ASCII Punycode for web compatibility.

Hard disk integer partition calculator.

Hard disk partition calculator helps plan integer-sized disk partitions according to your target capacity.

Translate the text into HTML.

Convert plain text into HTML code for quick webpage content generation and publishing.

XPath testing tool

XPath tester validates expressions and extracts nodes from XML and HTML documents for scraping and QA.

Htpasswd Generator

Htpasswd generator creates Apache password entries quickly for basic HTTP authentication setup.

XPath locating elements such as images, links, etc.

XPath locator finds images, links, and other elements in web pages for scraping, testing, and automation.

Append or remove double quotes in SQL.

Add or remove double quotes around string values in SQL statements quickly for data import and script editing.

Convert .htaccess to Nginx

Convert Apache .htaccess rules into Nginx configuration to simplify server migration and website management.

View webpage source code.

View webpage source code to inspect HTML, CSS, and JavaScript for analysis, learning, and debugging.