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Free AI-powered LinkedIn Lead Generation tool that runs on autopilot

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?
Based on our record, Cert Decoder seems to be more popular. It has been mentioned 1 time since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | linksprig.com | certdecoder.com |
| Pricing | ||
| Platforms | — | |
| Company | Startup from India · 20 - 49 employees · 2026 | — |
| Listed in |
In their own words, as submitted to SaaSHub.


LinkSprig is an free AI-powered LinkedIn outreach platform, designed and developed by Espial Solutions, built to help businesses, founders, agencies, and sales professionals connect with the right prospects and build meaningful conversations effortlessly. By automating prospect discovery,...
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
An editorial look at what each product does well and who it suits.


Overall verdict
Why this product is good
Recommended for
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
How to Get Started with LinkSprig | Free AI Lead Generation Tool (Beginner Guide)
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How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing LinkSprig and Cert Decoder.
LinkSprig's answer
LinkSprig was born out of frustration. The team at Espial Solutions watched founders and sales professionals spend hours every day on LinkedIn — manually searching for prospects, copy-pasting cold messages, and chasing follow-ups that went nowhere. The result was always the same — low reply rates, wasted effort, and missed opportunities. We believed there had to be a smarter way. So we built LinkSprig — an AI-powered LinkedIn outreach tool that plants the seeds of business growth automatically, while you focus on what truly matters: building relationships and closing deals. The name "LinkSprig" reflects exactly that — a small sprig that grows into something much bigger, just like the leads and conversations LinkSprig helps you generate every day.
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
LinkSprig's answer
LinkSprig is built for:
Founders & Startup Owners — Who want to generate leads without building a full sales team Sales Professionals & SDRs — Who want to focus on closing deals instead of manual prospecting Solopreneurs & Freelancers — Who want to grow their network and pipeline without overwhelm Marketing Agencies — Who manage LinkedIn outreach for multiple clients and need to scale efficiently
In short anyone who uses LinkedIn for business growth and wants to save time, increase reply rates, and generate consistent warm leads on autopilot.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
LinkSprig's answer
Most LinkedIn outreach tools are expensive, complicated, and rely on generic copy-paste templates. LinkSprig is different in 5 key ways:
Smart prospect targeting - Reach the right people every time , AI-powered personalization - Messages That Feel Human, Not Automated , Automated Outreach & Follow-Ups - Consistency without effort , Outreach pipeline visibility - Know What’s Working , Multi-campaign management - Run Multiple Campaigns Without Chaos
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.
LinkSprig's answer
Since LinkSprig is currently in early access / beta phase, we are onboarding our first wave of users. Our early customers include:
Startup founders looking to generate their first 100 leads B2B sales teams scaling their LinkedIn outreach Freelancers and solopreneurs growing their client base Marketing agencies managing outreach for multiple clients
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
LinkSprig's answer
LinkSprig stands out because it combines smart lead targeting, AI-personalized messaging, and an auto-reply assistant all in one free tool. Unlike other LinkedIn outreach tools, LinkSprig doesn't just automate messages it makes every interaction feel genuinely human and personal. The Auto-Reply Assistant is what truly sets us apart: it keeps conversations alive 24/7 even when you're offline, guiding prospects closer to a real conversation without any manual effort. Best of all, these powerful features are available completely free no credit card required.
Share your experience with using LinkSprig 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.


Tracking LinkSprig since Apr 2026.
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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