Tools for developers
Encoding, formatting, validation, text and web utilities for development workflows.
This collection groups operational tools around a real workflow. Use the browser-first utilities freely; any protected server processing shows its allowance or credit cost before it begins.
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Based on recent tools used on this device.
Base64 Decoder
Decode Base64 text online into readable data for development, testing and data handling.
Developer ToolsBase64 Encoder
Encode text or data to Base64 online for development, APIs, data transfer and testing.
Text ToolsBinary to Text Converter
Convert space-separated binary bytes back into UTF-8 text.
SEO ToolsBreadcrumb Schema Generator
Create BreadcrumbList JSON-LD from names and URLs.
SEO ToolsCanonical Tag Generator
Generate a canonical link tag from a validated absolute URL.
Text ToolsCase Converter
Convert text to upper case, lower case, title case, sentence case or alternating case.
Text ToolsCharacter Counter
Count characters with and without spaces, words and lines in text.
Developer ToolsCron Expression Helper
Build a standard five-field cron expression from common schedules.
Developer ToolsCSS Border Radius Generator
Generate and preview CSS border-radius values.
Developer ToolsCSS Box Shadow Generator
Build and preview a CSS box-shadow declaration.
Developer ToolsCSS Formatter
Format CSS rules and declarations for easier reading.
Developer ToolsCSS Gradient Generator
Create linear-gradient CSS from colours, direction and stop positions.
Developer ToolsCSV Cleaner
Trim cells, remove empty rows and normalise CSV output.
Developer ToolsCSV Column Extractor
Select one CSV column by header name and extract its values.
Developer ToolsCSV to JSON Converter
Convert CSV data to JSON online for APIs, applications, spreadsheets and developer workflows.
Developer ToolsCSV Viewer
Parse CSV data and display it as an accessible table.
Developer ToolsDuplicate Row Finder
Find duplicate rows in CSV or line-based data.
SEO ToolsEmail Extractor
Extract and deduplicate email addresses found in supplied text.
SEO ToolsFAQ Schema Generator
Create FAQPage JSON-LD from questions and answers.
Text ToolsFind and Replace Text
Find and replace matching text with optional case sensitivity.
Developer ToolsHMAC Generator
Generate an HMAC-SHA-256 value locally from a message and secret key.
SEO ToolsHreflang Tag Generator
Create reciprocal hreflang link tags for language URLs.
Developer ToolsHTML Entity Decoder
Decode common HTML entities back into readable text.
Developer ToolsHTML Entity Encoder
Escape HTML-sensitive characters for safe display as text.