Free tools.
Small, useful things — no signup for the offline ones.
Free tools
Email permutatorEnter a first name, last name, and domain to see the common work-email patterns.Enrichment API demo: one live call, one receiptRun one real call against a live endpoint. 100 free credits, no card. Read the whole response, including the execution_log that names which sources ran and what each one returned. The receipt is the part that tells you whether to trust the answer, so the demo shows it.Waterfall enrichment cost calculatorWork out what enrichment actually costs you. On a waterfall endpoint you pay on hits, so the bill is volume times hit rate times the per-hit credit cost. On a per-lookup vendor it is volume times the per-call cost, whether or not anything comes back. This page shows both sides of that arithmetic and the break-even between them. Your hit rate is your number, and we do not supply one.llms.txt generatorGenerate a spec-shaped llms.txt from your site name, summary, and page list.