TrendRadar vs 
Lepton Search
TrendRadar vs Lepton Search compared for 2026 — features, license, ease of use, performance and which one to choose. Watch what is trending across platforms, on your own server vs A conversational search engine in 500 lines.
Updated regularly · curated by olud.ai
TrendRadar vs Lepton Search at a glance
| Spec | TrendRadar | Lepton Search |
|---|---|---|
| Category | AI search engines | AI search engines |
| Type | Trend monitor (self-hosted) | AI search engine |
| License | GPL-3.0 | Apache-2.0 |
| Runs locally | Yes | Yes |
| Primary language | Python | Python |
| Ease of use | Intermediate | Beginner |
| Best for | teams wanting media monitoring without handing their watchlist to a SaaS | learning how answer engines work |
| GitHub stars | 62k | — |
How TrendRadar and Lepton Search score
| Criterion | TrendRadar | Lepton Search |
|---|---|---|
| Popularity | 4.5 | n/a |
| Maintenance | 4.5 | n/a |
| Ease of use | 3.5 | 5.0 |
| Privacy | 5.0 | 5.0 |
| License freedom | 3.5 | 5.0 |
Scores are computed automatically from public signals — GitHub stars (popularity), recent commit activity (maintenance), license type (freedom), local-first design (privacy) and onboarding complexity (ease of use). Indicative, not a verdict.
What each one is
TrendRadar
TrendRadar aggregates trending topics across many platforms, adds RSS subscriptions and keyword filtering, and sends alerts when something you care about moves. It is self-hosted, with a Docker image, so the watchlist and the results stay on your infrastructure.
- Aggregates many platforms plus your own RSS feeds
- Self-hosted with Docker: the watchlist never leaves your server
- Keyword filtering and alerting built in
Lepton Search
Lepton Search is a minimal, readable conversational search engine — a great starting point to build your own answer engine.
- Under 500 lines, very readable
- Easy to fork and customize
- Good teaching example
Key differences
TrendRadar is trend monitor (self-hosted), while Lepton Search is aI search engine. Their licenses differ (GPL-3.0 vs Apache-2.0), which matters if you ship a commercial product. TrendRadar leans more intermediate-friendly, whereas Lepton Search is more suited to beginner users. In short, TrendRadar fits teams wanting media monitoring without handing their watchlist to a SaaS, and Lepton Search fits learning how answer engines work.
Which should you choose?
Choose TrendRadar for teams wanting media monitoring without handing their watchlist to a SaaS. Choose Lepton Search for learning how answer engines work.
There is rarely one winner — many setups use both. The right pick depends on your hardware, your team's skills, and whether you value simplicity or control.
Frequently asked questions
Is TrendRadar or Lepton Search easier to use?
Lepton Search is generally the easier of the two to get started with, while TrendRadar rewards more setup with more control.
Are TrendRadar and Lepton Search free?
TrendRadar is free and open source (GPL-3.0), and Lepton Search is free and open source (Apache-2.0). Neither charges for the core software.
Can I run TrendRadar and Lepton Search locally?
TrendRadar: yes · Lepton Search: yes. Both can be used without sending your data to a third-party cloud where their setup allows.
TrendRadar vs Lepton Search — which should I pick in 2026?
Choose TrendRadar for teams wanting media monitoring without handing their watchlist to a SaaS. Choose Lepton Search for learning how answer engines work.
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