Internal tools often make bad startup ideas

Original Article ↗ Hacker News Discussion ↗

Internal software tools that evolve into commercial products—like Slack, Jira, or Docker—are often held up as ideal startup seeds, but many commenters argue these successes are rare and unrepresentative. They note that most internal tools are highly specific, hard to generalize into multi-tenant products, and compete with incumbents or in-house “we can build it in two weeks” attitudes, making them weak businesses despite being valuable inside a single company. Others counter that origin matters less than solving a real, widely felt problem at the right price, and that incentives, ease of use, integration costs, and maintenance responsibilities usually determine whether building or buying tools is the smarter path.

Scope of the debate

  • Thread responds to a claim that internal tools “often” make bad startup ideas, not “always.”
  • Many comments stress that almost any category of startup ideas “often” fails, so the statement isn’t very discriminating without data.

Counterexamples and success stories

  • Numerous well-known products started as internal tools or internal infrastructure: chat tools, project management, version control hosting, devtools, cloud services, containers, web frameworks, and even early web technologies.
  • Some argue many such examples are old (20+ years), so they may not say much about opportunities today.
  • There is disagreement over which products were truly internal tools vs. externally-oriented from the start (notably around cloud services history).

Hit rates and lack of evidence

  • Several participants ask how the failure rate of internal-tool-based startups compares with startups overall.
  • Others point out that citing a few successes is meaningless without knowing the denominator of failed internal-tool attempts.
  • No concrete data is presented; the relative hit rate remains unclear.

Why internal tools may often be weak startup ideas

  • Many internal tools are:
    • Extremely specific to one company’s workflows or industry.
    • Inferior re‑implementations of existing products (NIH syndrome).
    • Easy for other engineering teams to rebuild, undermining defensibility.
  • Turning an internal tool into a real product is said to be 10–50x harder:
    • Multi-tenant architecture, documentation, support, generalized workflows.
    • Extracting tacit knowledge into a clean, configurable product.

Arguments in favor of internal-tool starts

  • Internal tools can:
    • Prove real usage and “traction” before external launch.
    • Be strong candidates when they handle work engineers dislike (e.g., messy legacy integrations) or tasks non-engineers can’t easily replicate.
    • Benefit from intense dogfooding and tight feedback loops.
  • Some see tax and accounting treatment (e.g., limits on R&D credits for internal tools) as pushing firms to externalize tools as products.

Build vs. buy, tools vs. services

  • Many report that off-the-shelf tools are expensive, over-featured, hard to integrate, or require disguised programming anyway.
  • Others emphasize hidden long-term costs of maintaining bespoke internal tools and knowledge risk if key developers leave.
  • Developer tools are described as a particularly hard business: price sensitivity, ease of cloning, and difficulty selling to management even when engineers love the tool.

Context and nuances

  • The thread notes YC’s explicit call for “developer tools inspired by internal tools,” framing this piece as a skeptical counterpoint.
  • Several comments generalize: most ideas of any type make bad startups; execution, timing, and incentives (employee vs. business) dominate outcomes.