Data Shape Kit / form components

Keep typing.
Check only what changed.

A remote field check that keeps input immediate, ignores stale results, and checks the current value before accepting a form.

Try the edge cases

This demo simulates a service locally. It makes no network requests. Use 3–32 lowercase letters, digits or hyphens; start and end with a letter or digit.

available: A successful check after 400 ms.
taken: A validation message blocks acceptance.
slow: A 1.4-second check. Change it while checking to cancel the old result.
offline: A simulated service error. Retry with a different value.
timeout: A stalled check expires after 1.8 seconds.

Typing waits 350 ms before checking. Submit immediately to skip that delay. Editing Note starts no checks. Reset clears the form; the last accepted values remain below it.

Read the integration guide · MIT license

Remote field check v0.1.0 · Free source and a React Hook Form example. A real application must validate again on the server when it performs the operation. Bundled dependencies are listed in third-party notices.

Buy me a coffee, if this helped

If this saved you a little time, you're welcome to buy me a coffee. Please don't feel obliged — the code stays free, and useful feedback is appreciated too.

USDC / SOL · Solana: 9tY6D9mwcFaJwwzEHvw2v7nhSpdjqjNBYtuooyBN6rYy
USDC / ETH · Base: 0x568Ab98578d682FB0B0b45619BE73EbFfbf5a6eA
USDT · BNB Smart Chain (BEP20): 0x568Ab98578d682FB0B0b45619BE73EbFfbf5a6eA

Please match the asset and network exactly. Fees depend on your wallet or exchange. Thank you! — Tevinch