Bounceless vs DeBounce
Bounceless
bounceless.io
DeBounce
debounce.comSide by side
| Figure | Bounceless | DeBounce |
|---|---|---|
| Price from | $19/mo | Free |
| Free plan | Yes | Yes |
| Free trial | Yes | Yes |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Plans published | 10 | 1 |
| Spec score · Email Verification Services | 8.5 (#5) | 7.8 (#21) |
| Integrations | Bounceless says it does not yet ship native app integrations and describes CSV export, bulk verification, and re-import workflows for email platforms. | Listed integrations include HubSpot, Google Sheets, Mailchimp, ActiveCampaign, Mailjet, ConvertKit, MailerLite, Klaviyo, Brevo, Mailgun, WordPress and Zapier. |
| Privacy | The verification feature page directs customers to the Privacy Policy for retention and deletion details about uploaded lists. | DeBounce states that real-time API email addresses are not stored and that bulk lists and result files are automatically deleted after seven days. |
| Security | The quickstart instructs customers to store API keys securely and keep them out of source control, shell history, logs, screenshots, and prompts. | DeBounce states that retained personal data is stored in Germany, websites use SSL, raw-data servers are private-network-only, and result files are encrypted. |
| Support | The contact page says a real person on the Bounceless team will reply, and customers can contact the team without a product account. | The site advertises 24/7 support with experts. |
Plans
Bounceless
- FreeFree
- 5,000 credits$19, paid once
- Starter$19 a month
- 10,000 credits$29, paid once
- 25,000 credits$49, paid once
- 50,000 credits$89, paid once
- Business$99 a month
- 100,000 credits$159, paid once
- Scale$349 a month
- EnterprisePriced on request
In their own words
Bounceless
Bounceless verifies and cleans email lists, returning confidence levels, reason codes, and a Pre-Send Decision to send, review, or suppress each address. Its checks cover syntax, domain and MX posture, and mailbox signals when the receiving server permits them. Catch-all addresses receive reduced confidence because the service cannot confirm a particular mailbox; Gmail and similar major webmail providers are marked uncertain rather than safe to send. Users can upload a CSV through the web workspace or use the API, then export results. The REST API and event webhooks use the same result format, as do its MCP server and agent skills. Bounceless does not offer native app integrations; it describes CSV export, bulk verification, and re-import workflows for email platforms. A base check costs 1 credit, fresh deep catch-all resolution costs 5, and cached resolution costs 3; unknown results are not billed. Platforms are web and API. A free plan includes 1,000 credits monthly; paid plans start at $19/mo, and one-time credit packs are also listed.
DeBounce
DeBounce checks email addresses for syntax, domain, mailbox, catch-all and other issues. Users can upload TXT or CSV lists for bulk validation, then download result segments they can customize. The service detects disposable addresses and filters spam traps and honeypots. Its API handles real-time and bulk checks and can be used from Shell, Node.js, Ruby, PHP and Python environments. Concurrent validation defaults to five requests; higher throughput may be available on enterprise plans. List Monitoring rechecks connected lists about daily, typically 15–35 times per month, and usually uses credits equal to around twice the monitored list size each month. Integrations include HubSpot, Google Sheets, Mailchimp, ActiveCampaign, Mailjet, ConvertKit, MailerLite, Klaviyo, Brevo, Mailgun, WordPress and Zapier. DeBounce says real-time API addresses are not stored and bulk lists and result files are deleted after seven days. Its Pay-As-You-Go option is listed at free, with 5K–5M credit options, one credit per email validation and credits that never expire. A free plan and free trial are listed.