Start with a keyword
Enter the keyword or phrase you want to investigate.
KDP + Steam Tag Research
Find the keywords worth targeting.
Fully Offline$59 One Time*Windows
Research Amazon KDP and Steam keywords without jumping between search results, autocomplete, competitor pages, and spreadsheets. One Liner puts the research in one place and helps you narrow down the keywords that matter.
Built by a student who got tired of juggling five browser tabs just to research one keyword.
Windows 10/115 data sourcesUnder 30s per scanNo account required
one-liner.exe
Why One Liner?
Publisher Rocket just raised to $199. Here is how we compare.
| Feature | One Liner | Publisher Rocket | Book Bolt |
|---|---|---|---|
| Price | $59* | $199 | from $9.99/mo |
| Offline | |||
| Gaming / Steam | |||
| No subscription | |||
| Data stays local | |||
| BSR trends | |||
| Score provenance | |||
| No usage limits | |||
| Multi-source |
*Launch month pricing. Regular price $79.
Competitor prices based on publicly available information as of August 2026.
The Problem
KDP and Steam keyword research takes more tabs than it should.
Amazon search. Autocomplete. Competitor research. Notes. Spreadsheets. Repeat. Whether you're pricing a book on Amazon or tagging a game on Steam, the research process is the same mess.
The information is there. The annoying part is collecting it, comparing it, and figuring out what is actually useful.
5+
sources to check per keyword
Dozens
of phrases per search session
One spreadsheet
that keeps getting bigger
How it works
Search. Research. Shortlist.
Run the research
One Liner checks multiple sources and brings the results together so you can compare them without opening a new tab for each one.
Find what matters
Review the results, compare the numbers, filter the noise, and keep the keywords that fit your book or game.
terminal
> scan "dark fantasy"
5 sources connected
1,248 suggestions found
182 candidates scored
23.4s
5
data sources
7
AI providers
1,248+
suggestions per scan
<30s
typical scan time
Built for the work
Everything the research needs. Nothing it doesn't.
Opportunity Scoring
See which keywords deserve a closer look.
Instead of sorting through hundreds of phrases manually, use a single score to quickly compare demand, competition, and relevance.
Multi-Source Research
See more without opening more tabs.
Pull keyword ideas from Amazon, Google, YouTube, Steam, and more into the same result set and compare them side by side.
AI Analysis
Use AI to make the results easier to understand.
Cluster related phrases, identify patterns, and summarize large result sets with the AI provider you prefer. Supports Claude, Gemini, Grok, Ollama, and more.
Fast Desktop Workflow
Go from keyword to shortlist in minutes, not hours.
Search, review, filter, and export from one Windows app instead of moving between browser tabs and spreadsheets.
Two focused editions
Research built around what you ship.
For authors and publishers
Publish into proven reader demand.
Find book niches, validate reader language, inspect competition, and compose seven backend keyword slots from the same research workspace.
The story
Built by a student who got tired of juggling five browser tabs just to research one keyword.
One Liner is a solo project. No VC funding, no team of 50, no enterprise pricing to justify. Just a tool built because the existing ones were not good enough, and priced to match that honestly.
12+
Features
2
Platforms
100%
Offline
Private by default
Your keyword research belongs on your computer.
One Liner does not require an account just to use the app. Your searches and research stay on your machine unless a feature explicitly uses an external service.
Local storage for your research. Live sources for current market signals.
- Windows 10/11
- No account required
- Local data storage
- Export whenever you want
Beta Program
Join the Beta
Shape One Liner before v1.0 launches
Best Price Guaranteed
Beta testers get launch month pricing locked forever, plus a 20% coupon on top. Both. Not one or the other.
Direct Influence
Your feedback shapes the roadmap. Beta testers have already influenced core features in v0.1.0.
Early Access
Get v1.0 access 24 hours before the public launch. Be first.
Join Beta Waitlist
Free during beta period. Beta ends December 31, 2026.
After launch, prices go up. Beta testers keep launch pricing forever and get a 20% coupon on top.
Launch Month Pricing
One app. One purchase.
No monthly subscription for a tool you installed on your PC. Launch pricing applies during the first month of v1.0.
Lifetime license
KDP Edition
Amazon KDP authors and publishers
$59
$79
launch price
- Amazon KDP keyword research
- BSR intelligence + sparklines
- Competition scoring
- 7-slot keyword packer
- Score provenance ledger
- Price point heatmap
- Reverse ASIN spy
- Multi-marketplace support
- Fully offline
- One time payment
Lifetime license
Gaming Edition
Indie developers and studios
$79
$99
launch price
- Steam tag optimization
- Steam 20-tag recommender
- Review sentiment scraper
- 50-review barrier tracker
- Revenue estimation engine
- Niche drift detector
- Long-tail keyword expander
- Multi-source: Steam, Google, YouTube, DDG
- Fully offline
- One time payment
KDP + Gaming
Ultimate
KDP and Gaming together
$109
$129
launch price
- Everything in KDP Edition
- Everything in Gaming Edition
- Both modes in one app
- Priority support
- All future updates
- Fully offline
- One time payment
One time payment, no subscription ever. Free beta access comes first — paid pricing starts after the beta.
Windows Beta
Built for Windows. Ready for real research.
One Liner is an actual desktop app, not a browser mockup. Download the beta below and get started in minutes.
Beta participants get launch month pricing locked forever, plus a 20% coupon on top. Both.
terminal
One Liner v0.1.0-beta
Windows x64
Status: Available now
Windows desktop beta · Support: support@omgigi.dev
FAQ