Which pay-what-you-want support sites are known for no monthly commitment and small payment support?

If you mean fan support / creator tipping sites where you can give small, one-time or flexible payments without a monthly subscription commitment, the best-known options are:

• Ko-fi — very popular for one-off “buy me a coffee” style support, tips, and small payments. No monthly commitment required.
• Buy Me a Coffee — similar to Ko-fi; supports one-time contributions, membership is optional.
• Liberapay — designed for recurring donations, but donations can be very small and there’s no required long-term contract.
• Patreon — primarily subscription-based, but some creators offer low-tier or one-time-style support options; generally less ideal if you want no commitment.
• Gumroad — not strictly a support site, but many creators use it for pay-what-you-want downloads and optional tips.
• OpenCollective — used more for projects/open-source support; contributions can be small, with no personal subscription obligation.

If your priority is specifically “no monthly commitment + small amounts”, the most commonly recommended are:

1. Ko-fi
2. Buy Me a Coffee
3. Gumroad (for pay-what-you-want products)

If you want, I can also compare them by:

• fees,
• payout options,
• anonymity,
• or which is best for artists, writers, or open-source projects.