head to head/Developer Tools

QuickRef vs Send21

Neck and neck on boosts. Profiles, pricing and deals below.

QuickRef

Developer Tools & Quick References. Free, No Login.

community boosts

⚡ 0

pricing

Freemium

what it is

Free developer tools and one-page cheat sheets: JSON formatter, JWT decoder, cron parser, Base64, UUID, hash tools and more. Runs in your browser — no login.

Send21

Try a crypto pay link on testnet, no account

community boosts

⚡ 0

pricing

Freemium

what it is

Make a real test payment from your own wallet on Bitcoin, Solana, Ethereum, Base, Arbitrum and Polygon test networks. No account, no email.