AI Caption Generator
Describe your post, pick a platform and tone, and get a ready-to-use caption. Requests are handled by a secure backend — no AI key is ever exposed in this page.
Your AI-generated caption will appear here.
How it works
- Describe your topic and choose a platform, tone, language and length.
- Click Generate Caption — this sends your inputs to NAPIZO's secure backend.
- Copy the caption, or click Regenerate for a different version.
Features
Five platforms
Wording tuned for Instagram, Facebook, TikTok, YouTube and LinkedIn.
Six tones
Professional, Friendly, Funny, Emotional, Motivational or Promotional.
Three languages
English, Urdu and Roman Urdu.
Secure by design
The AI provider key lives only on the server, never in your browser.
Your topic is only used to generate the caption
Your input is sent over HTTPS to NAPIZO's backend, which forwards it to the configured AI provider to generate a response. No API key is ever present in this page's code.
Frequently asked questions
Which platforms are supported?
Instagram, Facebook, TikTok, YouTube and LinkedIn, each with wording suited to that platform.
What languages can I generate captions in?
English, Urdu and Roman Urdu are currently supported.
Is my API key ever visible to me or exposed?
No. The AI request is made from NAPIZO's server, not your browser, so no API key is ever present in the page or its JavaScript.
Is the AI caption generator free?
Yes — generate unlimited captions with no sign-up.
Do I need to install anything?
No — the generator runs entirely in your browser.