
YouTube Summary
YouTube Summarizer with ChatGPT
Youtube Subtitle Summarizer
NoteGPT.io
Tactiq
Downsub
Savesubs
Free YouTube video to text transcription with AI-powered summary. No signup required. Extract subtitles, transcribe audio, and get instant summaries.

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 | tubesum.app | certdecoder.com |
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| Platforms | — | |
| Listed in |
In their own words, as submitted to SaaSHub.


No description of TubeSum.app yet.
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.


No analysis of TubeSum.app yet.
Overall verdict
Why this product is good
Recommended for
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing TubeSum.app and Cert Decoder.
TubeSum.app's answer
Started as an internal tool to escape watching hours of videos for research. We automated transcripts and AI summaries, then opened it to everyone. Launched May 2026 — grew to 16,000+ searchable transcripts with zero marketing spend, purely on usefulness.
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.
TubeSum.app's answer
PHP (Laravel), PostgreSQL, Redis, yt-dlp for extraction, OpenAI Whisper for audio transcription, LLM APIs (DeepSeek) for summaries, Kubernetes (K3s) on a 3-node cluster.
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
TubeSum.app's answer
Content creators, video researchers, students, journalists, and SEO teams who need fast, reliable transcripts and summaries of YouTube videos without signing up or paying.
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
TubeSum.app's answer
Free forever with no registration. Most competitors require an account, cap transcript length, or charge for AI summaries. TubeSum handles any YouTube video — with or without subtitles — and delivers a structured, timecoded transcript plus an AI summary of key points instantly. The public searchable library is a unique differentiator: every transcript becomes discoverable content.
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.
TubeSum.app's answer
Cert Decoder's answer:
certdecoder.com is primarily built for developers, sysadmins, cybersecurity enthusiasts, and DevOps engineers.
TubeSum.app's answer
TubeSum is the only free YouTube transcriber that works with zero friction: - No signup, no limits, no paywall - Full timecoded transcript + AI summary in seconds - Works even when subtitles are missing (Whisper audio transcription) - Every transcript is public and searchable (16,000+ videos) - VPH analytics spot viral outliers for content creators - One-click Markdown export
Share your experience with using TubeSum.app 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 TubeSum.app since Aug 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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