cold0
ConditionalFree open-source cold email sender built with SvelteKit. Contact lists, personalized templates with dynamic variables, and PostgreSQL-backed management.
Tool matchup
cold0 vs lemlist for consultants. Compare two Lead Gen & Outbound tools on pricing, setup speed, strengths, and Curalo score.
Free open-source cold email sender built with SvelteKit. Contact lists, personalized templates with dynamic variables, and PostgreSQL-backed management.
Multichannel prospecting across email, LinkedIn, and phone — one workflow, not three tools. Massive built-in contact database and email warmup included.
lemlist leads by 29 points (clear winner).
Client-ready brief
Send a concise summary of winner, trade-offs, and rollout recommendation.
Swipe sideways to compare all columns.
| C cold0 | lemlist | |
|---|---|---|
| Quick facts | ||
| Pricing sanity | Free | From $63/mo |
| Setup speed | Long setup | 30 min setup |
| Intelligence | Focused | Medium |
| Integrations | 2+ | 4+ |
| Score breakdown | ||
| Outcome fit | 10/25 | 20/25 |
| Setup speed | 6/20 | 14/20 |
| Pricing sanity | 14/15 | 8/15 |
| Integrations | 6/15 | 12/15 |
| UX polish | 5/15 | 11/15 |
| Trust & support | 3/10 | 8/10 |
| Summary | ||
| Best for | Developers who want to learn cold email infrastructure from the ground up. | Consultants selling $10K+ engagements who need multichannel personalization. |
| Key strength | Strong on pricing | Strong on outcomes |
| Main weakness | Strong on setup speed | Strong on pricing |
Guides
Take our 2-minute quiz and get a personalized tool recommendation for your workflow.
Take the quizMore comparisons