Keplars

Password resets that bounce, receipts that land in spam, and a marketing tool that starts throttling after the first thousand contacts. That's the standard story of a small SaaS outgrowing its email setup. Keplars runs both jobs from a single dashboard, with mailbox warmup wired in.

What Keplars actually does

The platform bundles the pieces you would otherwise wire together yourself: API sending, a drag-and-drop editor, domain warmup, and delivery analytics, all behind one login. Instead of a subscription for transactional traffic and a separate marketing tool for campaigns, both flows come out of the same account and share the same sender reputation.

• Send transactional email via REST API, SMTP relay, webhooks, or SDKs

• Design broadcasts in a drag-and-drop editor or hand-written HTML

• Import Canva and Figma files as starting templates

• Warm up sending domains gradually to build sender reputation

• Track opens, clicks, bounces, and deliveries in real time

Most stacks split these across two vendors: a transactional API on one bill, a campaign tool on another, plus whatever glue reconciles the two. That split-vendor setup also makes deliverability harder to reason about — one bounce report lives in the marketing console, another in the API logs. Keplars keeps every send inside one dashboard and under one sender reputation, so a domain warms once and both flows benefit.

The features that matter

• Unified email editor. Drag-and-drop or raw code, with Canva or Figma files usable as templates.

• Transactional sending. Password resets, receipts, and alerts through the REST API, SMTP relay, webhooks, or official SDKs.

• Mailbox warmup. Sending volume ramps on a natural curve so a fresh domain earns reputation before a launch broadcast.

• 100+ integrations. Wire it to CRMs, checkouts, or n8n / Zapier / Bubble flows without writing SMTP glue.

Who it's built for

Small teams that need both sides of email without paying two vendors for it. Startup founders trying to stop losing signups to spam folders, indie hackers running welcome flows out of Next.js or Firebase, marketers running broadcasts that don't bill per contact, and agencies handling several client sending accounts from one seat. The consolidation math starts to matter around the point where the marketing tool passes $30 a month and the transactional API bill scales with account growth. If email is currently split across two live subscriptions, a single lifetime payment pays back inside a few months.

The entry tier lands at $69 for 10,000 sends a month across a thousand contacts, five email accounts, and one custom domain — enough for a small SaaS to consolidate off two subscriptions and keep every send under one roof.