Encoding Tools
Free online encoding and decoding tools for developers. Encode and decode Base64 strings, URLs, HTML entities, and convert images to Base64 — all processing happens in your browser for maximum privacy.
Base64 Encoder / Decoder
Encode and decode Base64 strings online. Free Base64 converter tool for developers.
URL Encoder / Decoder
Encode and decode URLs online. Free URL encoding tool with encodeURIComponent support.
HTML Entity Encoder / Decoder
Encode and decode HTML entities online. Free HTML entity converter tool.
Image to Base64 Converter
Convert images to Base64 encoded strings online. Free image to Base64 converter for developers.
About Encoding Tools
Free online encoding and decoding tools for developers. Encode and decode Base64 strings, URLs, HTML entities, and convert images to Base64 — all processing happens in your browser for maximum privacy.
All encoding tools on codetools.run run 100% in your browser. No data is ever sent to a server. Just open a tool and start working — no sign-ups, no limits, completely free.