Encoding, converting, and formatting data is a daily part of web development — but pasting sensitive strings into random online tools is a security risk. All five tools below run entirely in your browser on WorkUtilities. See our Complete Developer Tools Guide for the full collection.
URL Encoder / Decoder
Percent-encoding converts special characters — spaces, ampersands, question marks, hash symbols, and more — into a safe format for URLs and query strings. These characters have reserved meaning in URL syntax and would otherwise break the link or be misinterpreted by servers. A common real-world scenario: encoding a search query containing spaces or special characters before appending it to a URL. Use URL Encoder.
Binary Converter
Converting between binary, decimal, and hexadecimal number systems is useful for understanding how computers represent numbers at a low level, debugging bitwise operations, or working with binary and hex values in networking, embedded systems, and color codes. Type a value in any base and all formats update instantly. Use Binary Converter.
HTML Entity Encoder / Decoder
HTML entity encoding converts special characters like <, >, &, and quotes into their entity equivalents (<, >, &, etc.) so they display as literal text without the browser interpreting them as markup. This is important when rendering user-generated content or code snippets safely on a webpage. Use HTML Entity Encoder.
CSV to JSON Converter
Tabular CSV data — from spreadsheet exports, government portals, or data dumps — often needs to become JSON for APIs, JavaScript applications, or NoSQL databases that expect structured objects rather than flat rows. Paste CSV or upload a file and get formatted JSON instantly, all client-side. Use CSV to JSON Converter.
XML Formatter
Pretty-printing and validating XML documents — configuration files, SOAP API responses, RSS feeds, sitemaps — makes minified or poorly formatted XML readable and debuggable. A formatter also catches basic syntax errors before they cause runtime failures. Use XML Formatter.
Frequently Asked Questions
What is URL encoding used for?
URL encoding (percent-encoding) converts characters that have special meaning in URLs (spaces, &, ?, #, etc.) into a safe format, preventing them from breaking the URL structure or being misinterpreted.
Why would I need to convert CSV to JSON?
Many APIs, JavaScript applications, and NoSQL databases expect data in JSON format, while spreadsheet exports and data dumps commonly come as CSV — converting between them is a routine data-preparation step.
What's the difference between binary, decimal, and hexadecimal?
They're different number systems for representing the same value — decimal (base 10) is what humans use daily, binary (base 2) is how computers store data at the lowest level, and hexadecimal (base 16) is a more compact way to represent binary values, commonly used in color codes and memory addresses.
Why do I need to encode special characters before displaying them in HTML?
Characters like < and & have special meaning in HTML markup — if displayed literally without encoding, the browser may try to interpret them as code rather than visible text, breaking the page or creating a security risk with user-generated content.
Related Reading
Try URL Encoder → · Binary Converter → · HTML Entity → · CSV to JSON → · XML Formatter →