Keyworddit vs Topicfinder in 2026: Free Reddit vocabulary vs paid, traffic-validated competitor topics
Keyworddit tells you the words one subreddit uses, for free. Topicfinder crawls thousands of competitor pages to find topics that are already driving traffic, starting at $39 a month.
Keyworddit
Topicfinder- Keyworddit sources keywords from Reddit comment threads in a single subreddit. Topicfinder sources topics by crawling thousands of competitor pages and filtering by actual traffic, not search volume estimates.
- Topicfinder generates AI-scored title variations for every topic it finds. Keyworddit has no title generation or content tooling of any kind.
- Keyworddit is free with no daily limit beyond the 10,000-subscriber subreddit requirement. Topicfinder's Starter plan caps at 100 competitor searches and 3,000 topics per day for $39/month.
- Topicfinder stores research in a cloud dashboard with tagging, filtering, and team collaboration. Keyworddit is a single-page tool with no accounts, history, or saved searches.
- Neither tool offers a public API. Both export to CSV as the only path for moving data into another system.
Keyworddit and Topicfinder both help you decide what to write about, but they start from completely different evidence. Keyworddit mines a single subreddit's comment history for the vocabulary a community actually uses, attaches a rough monthly search volume from Grepwords, and costs nothing. Topicfinder crawls thousands of competitor domains in parallel, pulls their highest-traffic pages, and generates AI-scored title variations on top of that, all for $39 a month after a free trial. Keyworddit's evidence is what people say. Topicfinder's evidence is what already gets clicked. Neither replaces the other, since one surfaces raw audience language and the other surfaces proven competitive performance.
The tools at a glance
Keyworddit
Extract real keywords from Reddit subreddits with monthly search volume data, completely free
Keyworddit does one job: point it at a subreddit with 10,000 or more subscribers and it scans the comment history for the terms people actually use, attaching a monthly search volume figure via Grepwords. There is no signup, no daily limit, and no plan to choose, since the entire tool is a single free page.
Every result includes a context link that opens a Google search combining the keyword and the subreddit name, a quick way to check what an ambiguous term is referring to. Results export to CSV, so the list feeds cleanly into whatever tool handles the next step.
Keyworddit stops at the keyword list. There is no competitor crawling, no traffic filtering, and no title generation, so the entire discovery process rests on how well one subreddit's language maps to what you plan to publish.
| Feature | Free Free |
|---|---|
| Subreddit keyword extraction | ✓ |
| Monthly search volume | ✓ |
| CSV export | ✓ |
| Context links | ✓ |
| API access | ✗ |
| Saved projects | ✗ |
Topicfinder
Multi-threaded competitive content research that crawls thousands of competitor pages, surfaces proven topics, and generates AI-optimized title suggestions in one tool
Topicfinder starts from a different premise than a keyword database: if a competitor is already getting traffic on a topic, there is a proven path to earning traffic on something similar. Starting from your domain and one competitor, it identifies thousands of similar sites, crawls them in parallel, and pulls their highest-performing pages, filtered by actual traffic rather than a volume estimate.
Advanced filters let you cut a report of tens of thousands of results down by traffic threshold, content type, and other signals, with custom tags for grouping results into ongoing content pipelines. An AI title generation layer sits on top of every topic found, producing multiple variations scored for SEO potential and length, so writers can move from topic to draft without a separate optimization pass.
All of this is credit-based: the Starter plan includes 100 competitor searches and 3,000 topics a day for $39/month, with a free trial requiring no credit card. There is no public API, so anything beyond the app itself depends on CSV exports, and the Agency plan's pricing is not published, requiring a direct conversation with the team.
| Feature | Trial Free | Starter $39/mo | Business $149/mo | Agency Contact |
|---|---|---|---|---|
| Credits per day | 100 (3,000/mo) | 100 (3,000/mo) | 500 (15,000/mo) | Custom |
| Topics found per day | 3,000 | 3,000 | 15,000 | Custom |
| AI title generation | ✓ | ✓ | ✓ | ✓ |
| Team workspace | ✗ | ✗ | ✓ | ✓ |
| Public API | ✗ | ✗ | ✗ | ✗ |
Head-to-head feature comparison
| Feature | Keyworddit | Topicfinder |
|---|---|---|
| Core discovery method | Reddit subreddit comment mining | Multi-threaded competitor page crawling |
| Search volume data | Yes (via Grepwords) | No (filters by traffic, not volume) |
| Traffic-based topic filtering | No | Yes (top-performing competitor pages) |
| AI title generation | No | Yes (SEO-scored title variations) |
| Team workspace / report archive | No | Yes (Business plan and above) |
| CSV export | Yes | Yes |
| Free option | Yes (fully free) | Yes (free trial, no credit card) |
| Daily result cap | None (subreddit must have 10,000+ subscribers) | 3,000 topics/day on Starter |
| API access | No | No |
| Starting price | Free | $39/mo |
Which should you choose?
KeywordditTopicfinderTopicfinderKeywordditTopicfinderKeywordditThe real difference is what counts as evidence. Keyworddit's evidence is language: what a Reddit community actually says, for free, with nothing to validate whether any of it drives traffic if you write about it. Topicfinder's evidence is performance: pages that are already earning clicks on competitor sites, crawled at a scale no manual process can match, with AI-generated titles ready to hand to a writer. Topicfinder's $39/month Starter plan and credit caps are a real cost for high-volume agencies, but for most content teams running a normal publishing cadence the daily limits rarely bind.
Bottom line
Use Keyworddit first, and for free, when part of your audience lives on a specific subreddit; there is no cost to checking whether that community's language should shape your content plan. Subscribe to Topicfinder's $39/month Starter plan once you need proof that a topic already drives traffic somewhere before committing writer time to it, plus AI-generated titles to speed up production. Content teams building a real publishing pipeline will get more sustained value from Topicfinder's competitive validation than from Keyworddit's free vocabulary check alone, but running Keyworddit first costs nothing and can still surface angles a competitor crawl misses.
Frequently asked questions
Is Keyworddit a real alternative to Topicfinder, or do they solve different problems?
Keyworddit and Topicfinder solve different problems and rarely compete for the same budget. Keyworddit extracts vocabulary from a single subreddit's comment history for free, while Topicfinder crawls thousands of competitor pages to find topics already earning traffic and generates AI-scored titles for them, starting at $39/month. Content teams needing proof a topic works before writing should look at Topicfinder; anyone testing whether a Reddit community is worth building around should start with Keyworddit.
Does Keyworddit generate titles like Topicfinder does?
No, Keyworddit has no title generation or content tooling of any kind; it only returns a list of keywords extracted from Reddit comments with a search volume figure attached. Topicfinder generates multiple AI-optimized title variations for every topic it finds, scored for SEO potential and length, which is a fundamentally different output than Keyworddit produces.
Is Topicfinder worth $39 a month when Keyworddit is free?
Topicfinder is worth the cost if you need topics validated by actual competitor traffic rather than search volume estimates, plus AI-generated titles to speed up the move from research to draft. If your only goal is understanding how one specific subreddit talks about a topic before deciding what to write, Keyworddit's free extraction covers that narrower need without any subscription.
Does either tool have a public API for pulling data into other systems?
No, neither tool offers a public API. Keyworddit exports results to CSV, and Topicfinder also exports to CSV for both selected results and full reports, but both require moving data manually rather than connecting it directly to a BI tool or custom dashboard.
Which tool is better for finding topics competitors are already succeeding with?
Topicfinder is built specifically for this: it crawls thousands of competitor domains in parallel and filters results by actual traffic, so every topic it surfaces has demonstrated demand somewhere already. Keyworddit does not analyze competitor pages at all; it only extracts vocabulary from Reddit comment threads, so it cannot tell you whether a term has ever driven traffic anywhere.