EndeURL — URL Encoder/Decoder

A tiny Go web tool that provides a simple web UI and JSON API to URL-encode and decode text.

Features

• Single binary, zero external dependencies.
• Small web UI for interactive encode/decode with Live mode and keyboard shortcuts.
• JSON endpoints for programmatic use: /encode and /decode.

Quick start

1. Build the binary

cd /path/to/endeurl
go build -o endeurl

2. Run the server

./endeurl

By default the server listens on port 8080. Open http://localhost:8080 in your browser to use the web UI.

API

All API endpoints accept a POST request with a JSON body in the shape:

{ "text": "..." }

• POST /encode — returns URL-encoded text
• POST /decode — returns URL-decoded text

Both endpoints respond with JSON:

{ "result": "...", "error": "..." }

Examples

Using curl to encode:

curl -s -X POST http://localhost:8080/encode \
  -H 'Content-Type: application/json' \
  -d '{"text":"Hello world? &=/"}'

# Response:
# {"result":"Hello+world%3F+%26%3D%2F"}

Using curl to decode:

curl -s -X POST http://localhost:8080/decode \
  -H 'Content-Type: application/json' \
  -d '{"text":"Hello+world%3F+%26%3D%2F"}'

# Response:
# {"result":"Hello world? &=/"}

Notes and troubleshooting

• The web UI simulates network requests client-side; the server endpoints implement real encoding/decoding behavior used by the UI when deployed together.
• If port 8080 is already in use, stop the other service or modify the source to change the port variable in main.go.
• The project targets Go 1.24 (as declared in go.mod).

Contributing

• Small, self-contained project — open a PR with improvements (better error messages, configurable port, tests, or Dockerfile).