AI Prompt Randomizer
Unleash creativity with customizable, randomized prompt generation.. [Free]
Last verified:
What is AI Prompt Randomizer?
AI Prompt Randomizer is a lightweight web tool that generates many variations of a user-defined prompt by combining a template with lists of variables, making it easy to produce diverse prompts for image and text AIs. The interface lets you define a template (for example a Midjourney /imagine prompt) and supply multiple variable lists (colors, adjectives, subjects, styles, etc.), then randomly combines those values to output batches of unique prompts. It includes an API endpoint so developers can integrate randomized prompt generation into scripts, pipelines, or other tools, and it can output results in copy-friendly formats such as plain text, JSON arrays, or individual lines ready for pasting. The tool is aimed at AI artists, prompt engineers, developers, and content creators who want fast, repeatable variety without manually crafting each prompt.
AI Prompt Randomizer pricing
Pricing model: Freemium
The website provides the tool as a free web utility and documents a free API endpoint for POST /api/randomize; there are no paid tiers or subscription plans displayed on the site, and basic usage (web UI and API examples) is presented without pricing information or paywalls.
AI Prompt Randomizer pros
- Simple template-and-variables workflow for rapid prompt generation
- Generates large batches of prompts in a single action
- Supports custom variable lists for fine-grained control
- Outputs prompts in multiple copy-friendly formats (JSON, array, lines)
- Includes a documented API endpoint for programmatic access
- Works well with Midjourney-style prompt syntax (flags and versions)
- No account or sign-in required to use the web tool
- Lightweight and fast — minimal UI friction
- Preserves user-entered template structure including flags
- Enables reproducible randomness for rapid A/B prompt testing
- Useful for brainstorming creative combinations quickly
- Good for automation workflows and batch image generation
- Allows specifying exact number of generated outputs
- Can be used as a developer tool or integrated into other apps
- Exports ready-to-use prompts that require no further formatting
AI Prompt Randomizer cons
- No visible advanced filtering or deduplication options
- Minimal UI — lacks guided templates for beginners
- No built-in gallery or preview of generated results
- Limited documentation on rate limits or usage quotas
- No account system — limited persistence of saved templates
- No built-in variable library import/export UI
- No direct integrations to image generation services
- Randomization is basic (no weighting or conditional logic)
Frequently asked questions about AI Prompt Randomizer
How do I generate multiple prompts at once?
You define a prompt template with placeholders (e.g., {color}) and provide arrays of values for each variable, then set the desired amount; the tool will combine values at random and return the specified number of prompts.
What input formats does the tool accept for templates?
Templates are plain text strings that can include model-specific flags and syntax (for example Midjourney /imagine prompts and version flags); placeholders are written with curly braces that match keys in the variables object.
Can I use this from code or scripts?
Yes — the site documents an API (POST https://promptrandomizer.tdbr.de/api/randomize) where you send a JSON body containing template, amount, and variables to receive a JSON array of randomized prompts for programmatic workflows.
What output formats are available?
Generated prompts can be copied as plain lines, JSON arrays, or other copyable formats shown in the UI so you can paste them directly into batch jobs or other tools.
Does the tool save my templates or variables?
No account or persistence mechanism is advertised on the site, so templates and variable lists are not stored server-side for later retrieval through a user account.
Can I control randomness or weighting of options?
The site shows basic random selection from provided lists and does not provide UI controls for weighting or conditional selection between variables.
Are there usage limits or rate limits for the API?
The public documentation includes the API endpoint and request/response examples but does not publish explicit rate limits, quotas, or authentication requirements in the visible documentation.
Is the tool suitable for non-image prompts (text prompts)?
Yes — the template-and-variable approach is generic and can be used for any textual prompt format, not just image-generation prompts, as long as you supply an appropriate template.
Can I include complex placeholder types like nested lists or objects?
The examples on the site show simple arrays of string values per variable; there is no documented support for nested structures or complex variable types in the public examples.
How do I include model flags or versioning in prompts?
Include model-specific flags (for example --v 5) directly in your template string; the tool preserves the template text and appends substituted variable values into it when generating outputs.