Programming tools
JSON formatter, Base64 encoder and other developer utilities for computer science students — everything runs locally in your browser.
2 live tools4 in development
Free
Base64 Encoder / Decoder
Encode or decode Base64 text instantly in your browser. Full UTF-8 (unicode) support, copy-ready output, zero data leaves your device.
ProgrammingOpen
PopularNewFree
JSON Formatter
Pretty-print, minify and validate JSON instantly in your browser. Clear error messages with line and column hints. Nothing you paste is sent anywhere.
ProgrammingOpen
In the pipeline
These programming tools are in development:
- Regex TesterComing soon
- Timestamp ConverterComing soon
- Color ConverterComing soon
- Binary / Decimal ConverterComing soon
Programming questions, answered
Is my code or data uploaded?
No — formatters and encoders run entirely in your browser. Nothing you paste is sent anywhere.