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ImaginPrompt vs PromptHero

Two fact sheets from our own research, side by side — pricing, platforms, API access and status re-checked by us rather than quoted from the vendors. ImaginPrompt starts at $14.99, PromptHero at $16. Both have a free tier.

ImaginPromptUpload an image and get back a prompt formatted for Midjourney, DALL-E 3, Stable Diffusion or LeonardoPromptHeroSearchable library of community prompts for Midjourney, Stable Diffusion, FLUX and other image and video models

Side by side

FactImaginPromptPromptHero
CategoryPrompt Engineering & LibrariesPrompt Engineering & Libraries
Pricing modelFreemiumFreemium
Starts at$14.99 month$16 month
Public APINoNo
PlatformsWebWeb
Company—ElevenYellow
Last verifiedSep 6, 2026Sep 6, 2026

What our research says

ImaginPrompt

A reverse-prompt tool that goes further than most by formatting output for a named generator's syntax rather than emitting one generic description. Credits are shared across image-to-prompt, prompt enhancement and a built-in Flux generator, and the one-time packs never expire, which suits occasional use better than a subscription. The catch is the licence: the free tier is personal-use only, and commercial rights start two tiers up at $24.99.

Pros

  • Output is formatted per target model rather than as one generic caption
  • Free tier of five conversions and fifty enhancements a day needs no payment
  • One-time credit packs from $5 that do not expire, alongside subscriptions
  • Credits work across image-to-prompt, prompt enhancement and Flux.1 Schnell generation

Cons

  • Commercial licence only starts at the $24.99 Professional tier
  • No API, so it cannot be wired into an automated pipeline
  • No company, founder or country is disclosed, including on the terms page
  • Free tier limits are daily, so a single busy session exhausts them

PromptHero

The most useful part is the archive: seeing real prompts beside their outputs beats guessing syntax from scratch. Generation credits and course upsells are newer additions, and everything you make on the free plan stays public.

Pros

  • Large prompt archive organized by model, style and category, video models included
  • Transparent plans page that spells out credits, speed tiers and visibility rules
  • Credits can be bought without a subscription and never expire
  • Free browsing makes it useful even if you never generate on-site

Cons

  • Free and credit-only generations are always public and more strictly moderated
  • No API, so nothing here can be automated
  • Site aggressively blocks non-browser access, which also breaks link previews and scrapers

Which one fits

Choose ImaginPrompt if you need

  • Reverse-engineering a reference image into a usable Midjourney or SDXL prompt
  • Matching an existing visual style across a set of generated images
  • Occasional users who prefer non-expiring credit packs to a subscription

Choose PromptHero if you need

  • Studying working prompt-plus-output pairs for a specific model before spending credits anywhere
  • Learning model-specific prompt syntax across image and video generators
  • Creators who want one browser tool to generate across many models

More comparisons

Browse all Prompt Engineering & Libraries →