ExitFounder
StartupsFor SaleFoundersRankingsLaunchesToolsBlog
/
Log inAdd startup
HerculRadarRailwayMetricMapOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dHerculRadarRailwayMetricMapOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30d
l1
Railway
Deploy apps, databases and cron in minutes.
Sponsor
l2
MetricMap
Simple, privacy-first web analytics for founders.
Sponsor
l3
Advertise
16 spots left
$490 / 30 days
l4
Advertise
16 spots left
$490 / 30 days
l5
Advertise
16 spots left
$490 / 30 days
r1
HerculRadar
Track competitors, keywords and mentions in one radar.
Sponsor
r1
Advertise
16 spots left
$490 / 30 days
r2
Advertise
16 spots left
$490 / 30 days
r3
Advertise
16 spots left
$490 / 30 days
r4
Advertise
16 spots left
$490 / 30 days
ExitFounder

Discover the companies founders are building. Every metric with its provenance.

Domain Rating by Ahrefs. Traffic figures are estimates unless marked verified.

Explore
  • Startups
  • For Sale
  • Founders
  • Rankings
  • Launches
  • Tools
  • Blog
  • Categories
  • Technologies
  • Collections
  • Tags
  • Platforms
  • I want to…
  • Alternatives
  • Deals
  • Directories
  • API & MCP
  • Pricing
  • Advertise
Guides
  • Start here
  • Listing guidelines
  • Playbooks
  • Glossary
  • Directory methodology
For agents & developers
  • API & MCP
  • llms.txt
  • OpenAPI
  • MCP server
  • Discovery snapshot
Ask AIChatGPTClaudePerplexityGrokGeminiMeta AIMistralCopilot
For agentsllms.txt·llms-full.txt·ai.txt·AI snapshot·MCP docs·MCP server card·MCP discovery·Markdown catalog·API catalog·OpenAPI·Public REST·auth.md·Agent Skills·startups.json
© 2026 ExitFounderTermsPrivacyRefundsCookies
MetricMapRailwayHerculRadarOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dMetricMapRailwayHerculRadarOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30dOpen slot$490/30d
HomeToolsAI watermark & hidden character detector

AI watermark & hidden character detector

Find zero-width characters, Unicode tags, homoglyphs and unusual spaces in pasted text; copy a cleaned version.

Free · runs in your browser

Runs entirely in your browser. Nothing is uploaded.

Verdict
Paste text to check
Hidden characters
0
zero-width, tags, selectors, homoglyphs
Unusual spaces
0
no-break, thin, em…
Em dashes / curly quotes
0 / 0
style tells, not proof

Invisible Unicode is one way text can be marked or made to break search; it is not proof that a specific AI wrote it, and its absence proves nothing either. Em dashes and smart quotes are a writing style, not a watermark.

More in AI & agents
llms.txt generatorrobots.txt generatorAI crawler access checkerWhat does AI think my product is?