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The smartest way to plan your next trip

Decode and verify SSL/TLS certificates online. Extract X.509 details including issuer, validity, SAN, and fingerprint. Fast, secure, and browser-based.

Which is more popular?
Cert Decoder might be a bit more popular than Plan Harmony. We know about 1 link to it since March 2021 and only 1 link to Plan Harmony.
Website, pricing, platforms and company facts side by side.
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| Website | planharmony.com | certdecoder.com |
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| Company | Startup from the United States · 1 - 9 employees · 2025 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


Plan Harmony is an all-in-one travel agency platform built for independent advisors and boutique agencies who want to operate like a larger team without stitching together five to seven separate tools. It replaces the typical advisor stack (generic CRM, invoicing app, payment links, commission...
Cert Decoder is a free online tool that helps you decode X.509 SSL/TLS certificates in PEM format. It instantly shows important information like the issuer, expiry date, SAN entries, and fingerprint. All data is processed locally in your browser, so nothing is ever sent or stored elsewhere.
What each product offers, as listed by its team.


Possible disadvantages
Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Plan Harmony yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
Plan Harmony for Travel Agencies
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Plan Harmony and Cert Decoder.
Plan Harmony's answer
Plan Harmony is the only travel-specific platform that bundles a CRM, invoicing, online payments, supplier-commission tracking, e-signatures with audit trails, task workflows, custom forms, lead capture, and a native blog on the agency's own custom domain into a single product. Two capabilities are essentially uncontested in the category: publishing a blog directly under the advisor's own brand and domain, and commission reconciliation with partial-payment recording, overdue detection, and CSV export of the difference between filing a commission report and actually closing the books each month. It also ships with 6,000+ tours and experiences across 136 countries built into the itinerary builder.
Plan Harmony's answer
It replaces 5–7 separate tools (CRM + invoicing + Stripe payments + commissions + e-sig + task management + website/blog + social templates) with one travel-built platform — without per-invoice payment fees and without a separate DocuSign or Squarespace bill. Versus TravelJoy and Travefy, it offers deeper commission reconciliation, true multi-currency invoicing, ESIGN/eIDAS-grade e-signature audit trails (signer, IP, timestamp, content hash), and blog publishing on the advisor's own domain, none of which the incumbents match. Versus ClientBase/Sabre, it's a modern UI, not a GDS-tied legacy system. Versus HoneyBook/Dubsado, it's purpose-built for travel, with trip-linked invoices and supplier commissions instead of generic project records.
Cert Decoder's answer:
Simple, fast, and reliable. Some similar tools can’t even decode basic certificates. I rigorously tested my tool with many real-world certificates and covered several edge cases where competitors fall short.
Plan Harmony's answer
Two audiences: The professional product serves independent travel advisors and boutique agencies (1–35 advisors, $100K–$10M+ in annual travel sales) — including host- or franchise-affiliated advisors (Cruise Planners, SmartFlyer, Embark Beyond, Gifted Travel Network) who need an operational layer around their host's booking system, as well as niche specialists in adventure, destination weddings, group travel, and luxury leisure. The consumer product serves friends and families collaboratively planning group trips with shared itineraries, voting, and expense splitting.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Cert Decoder's answer:
I built certdecoder.com over the weekend for my own needs. Sometimes in my work, I need to verify and check certificate details.
Cert Decoder's answer:
certdecoder.com was built using just JavaScript and HTML—simple, fast, and with all processing happening locally in your browser, so no certificate data is sent to any server
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
Share your experience with using Plan Harmony and Cert Decoder. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


Hi HN, I built Plan Harmony, a travel planning tool that helps people go from scattered ideas to a structured itinerary without the usual mess of spreadsheets, notes, and 27 open browser tabs. The core idea: most trip planners either... - Source: Hacker News / over 1 year ago
Why? Because I built certdecoder.com and couldn’t find a decent place to submit it. So I said screw it — I’ll build my own. With blackjack and hookers. - Source: dev.to / over 1 year ago
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