Stop guessing which one. Put them side by side.

The grid says what these tools are. This says what builders did about it — one decision per person, changeable whenever you change your mind.

# Tool comparison — Resend vs Discord Webhooks vs Formik

Source: Kbaise, a directory of tools that work with Lovable projects.
Pick one and tell me why before writing any integration code.

## Resend (resend)
- URL: https://resend.com
- Category: Email, forms & notifications
- Cost: mixed — Free: 3,000 emails/mo, 100/day, 1 domain. Pro $20/mo for 50,000 emails and 10 domains. Scale $90/mo for 100,000. Overage $0.90 per 1,000.
- What it is: Developer-first transactional email API from the team behind React Email. Send via REST, SMTP, or SDKs for Node, Python, Go, Rust and PHP. Handles domain auth (SPF, DKIM, DMARC), event webhooks, inbound receiving, and a broadcast plus audience feature for simple newsletters.
- Why builders pick it: The fastest path from npm i resend to a working signup email — one API key, one function call, JSX templates. The free tier covers most side projects outright.
- Trap: Free plan caps at 100 emails/day and 1 verified domain, and an unverified domain can only send to your own address. Shared IPs mean your deliverability rides on your neighbors until you earn volume.
- Wiring: npm i resend
- Full dossier: /api/public/tools/resend

## Discord Webhooks (discord-webhooks)
- URL: https://docs.discord.com/developers/resources/webhook
- Category: Email, forms & notifications
- Cost: free — Free. No bot user, OAuth or authentication required; standard Discord API rate limits apply per webhook.
- What it is: Discord webhooks post messages into a channel without a bot user or authentication. Create one in channel settings or via the API, then POST to /webhooks/{id}/{token} with content, embeds, files, components or polls. You can override the display username and avatar per message.
- Why builders pick it: The cheapest notification channel for indie projects that already run a Discord — deploy notices, changelog posts, error alerts. Copy a URL out of channel settings and you are shipping.
- Trap: The URL is a credential — anyone holding it can post as your webhook, so keep it server-side. Rate limits are per webhook and loops get 429s fast; batch into embeds instead of firing one call per item.
- Full dossier: /api/public/tools/discord-webhooks

## Formik (formik)
- URL: https://formik.org
- Category: Email, forms & notifications
- Cost: free — Free and MIT-licensed. No paid tier.
- What it is: Long-established React form library using controlled components, exposing useFormik, a render-prop Formik component and Field plus ErrorMessage helpers. Manages values, touched state, errors, Yup validation and the submission lifecycle. Roughly 34k GitHub stars, latest release 2.4.9, with slow maintenance activity.
- Why builders pick it: Still the right call when maintaining an existing Formik codebase or when you prefer the explicit controlled-input model. Years of tutorials and Stack Overflow answers exist for every edge case.
- Trap: Maintenance has been minimal for years and controlled inputs re-render the whole form on every keystroke. For anything new, React Hook Form is the better default.
- Wiring: npm i formik yup
- Full dossier: /api/public/tools/formik

## Quick read

- Free with no card: Discord Webhooks, Formik.

## Rules
1. Prefer the free tier when no budget was stated, and say what the ceiling is.
2. Read the full dossier before integrating.
3. Fetch /api/public/models before writing any AI model ID.

Agents can fetch the same thing: GET /api/public/compare?slugs=resend,discord-webhooks,formik