Discord Promo Checker

Promo Checker is a fast and powerful Discord Nitro Gift Code / Promo Code checker written in Golang.

The tool efficiently checks large lists of promo codes, categorizes them by duration, and provides detailed status information.

Features

• Fast and accurate verification of Discord promo/gift codes using the official Discord API
• Automatically categorizes valid promos into 1 Month and 3 Months Nitro
• Precise expiry checking based on expires_at and end_date
• Supports both full links (https://promos.discord.gg/XXXXX) and raw promo codes
• Automatic duplicate removal (configurable in config.yaml)
• Powerful multi-threading support with customizable thread count for maximum speed
• Supports Proxy and Proxyless modes
• Detailed result categorization and saving into separate files:
  • 1_month_promos.txt + 1_month_promos_date.txt
  • 3_month_promos.txt + 3_month_promos_date.txt
  • used.txt (fully claimed)
  • expired.txt
  • invalid.txt
  • ratelimited.txt
• Discord Webhook support for start and completion notifications
• Smart retry system on network errors and rate limits
• Configurable timeout

UI & Experience

• Clean, colorful, and professional console interface
• Real-time logging with clear icons and colored output
• Dynamic console title that auto-updates with live statistics:
  • Total Promos | Valid | Claimed | Expired | Invalid | Ratelimited
  • Remaining | Elapsed Time
• Excellent cross-platform support (Windows, Linux, macOS)
• Automatic ANSI color support on Windows

Others

• Auto Retry System
• Configurable Threads and Timeout
• Duplicate Removal Option
• Clean & Modern UI
• Auto-updating Console Title
• License Key Protection (VANI- format)
• Developed in Golang – High performance and low resource usage

Developed by @swllette