Free tools
Free tools for your launch.
Small tools for planning and running a launch. They run in your browser, need no account and work with any waitlist tool.
Free toolWaitlist growth calculatorSee how a waitlist grows with referrals, week by week until launch, with double opt-in and the viral coefficient (K).Open the calculator →Free toolUTM link builderTag the links you share for a launch: presets for six launch channels, clean lower-case values and a copy button.Open the UTM builder →Free toolLaunch email templatesThe four waitlist emails with your product, name and launch date filled in: confirmation, welcome, update and invite, in plain text and HTML.Fill in the templates →Free toolLaunch countdown generatorA countdown timer for your launch page: date, time zone, words and colours with a contrast check, as one snippet with no external files.Make a countdown →Free toolOpen Graph previewSee how a link looks on Google, X, LinkedIn, Facebook, Slack and in chats, check title length and image size, and copy the meta tags.Preview your link →Free toolEmail list cleanerFind invalid, duplicate, mistyped and disposable addresses in a pasted list or a CSV, and download the clean list. Nothing is uploaded.Clean a list →
More free tools from the same maker
- Oftenflow tools: a retention calculator, a Shopify order analyser and a Klaviyo cost calculator.
- Flagbell tools: a support staffing calculator and an NPS and CSAT calculator.
- Gatelamp tools: a cookie banner checker and privacy-friendly video embeds.
Early access
Early birds get in first.
Join the waitlist for Waitlark. We invite people in small groups, and waitlist members get the early-bird price.
One email to confirm, one when your invite is ready. Unsubscribe in one click. What we store.