Utilities Pro Pro

PromptForge stays free for everything you use today. Pro adds the features built for shipping AI work with confidence, in all four DevSpeak Utilities apps, for one price.

7-day Pro trial, no card required

Sign in with Google and it starts by itself: every Pro feature in all four apps, with up to 30 Pro actions a day (100 in total) and 3 premium-model runs a day (5 in total). Then you're back on Free automatically; nothing to cancel.

One trial per email. Not available to emails that already had Utilities Pro, and new trials are limited each day.

Pro in PromptForge

  • Prompt linter · Catch injection-unsafe templating, leaked API keys, conflicting rules, vague wording and missing output formats, with line numbers and one-click fixes.
  • One-click prompt hardening · Add an instruction hierarchy, delimiters around untrusted input, and refusal and tool-use limits to a system prompt, then review the side-by-side diff before accepting.
  • Assertion-based prompt tests · Pin contains, not-contains, regex, max length, valid JSON and JSON-keys assertions to each test case and get a pass/fail table on every run.
  • Premium models · The large models in every model picker: Claude Opus 5.5, Claude Sonnet 5.5, Mistral Large 4 and Mistral Medium 3.5. Claude Haiku 5.5 (the default), Mistral Medium 3.1, Devstral 2, DeepSeek and the other fast models stay free for everyone.
  • AI writing assist in the editor · Rewrite, tighten, fix, expand or turn any selection into a checklist.
  • Cloud version history · Named snapshots kept in the cloud, with a side-by-side diff and one-click restore.
  • HTML and PDF export · Share polished prompt specs with people who never open a Markdown file.
  • Token and context budget · See how much of each model's context window a prompt uses before you ship it.

One subscription, Pro in all four apps

In another app, sign in with Google using the same email to unlock Pro there.

Secure checkout by Dodo Payments, merchant of record. Prices include applicable taxes. Cancel anytime from Settings → Billing.

One plan, four apps

What Utilities Pro adds in each app. Everything each app does today stays free.

  • PromptForge's tool directory: prompt-engineering tools such as System Prompt Maker, Prompt Optimizer and Image to Prompt

    PromptForge

    Prompt engineering toolbox

    You are here

    A prompt-engineering toolbox: generators, a linter, tests and a workspace.

    Pro adds in PromptForge

    • Prompt linter
    • One-click prompt hardening
    • Assertion-based prompt tests
  • SpecStudio's Studio: a travel-booking request with allowed domains, constraints and success criteria, ready to compile into a spec

    SpecStudio

    Agent task specs

    Turn a rough request into a safety-gated spec a browser agent can follow.

    Pro adds in SpecStudio

    • Spec risk audit (OWASP LLM Top 10)
    • Export to AGENTS.md, CLAUDE.md and Cursor rules
    • Live page grounding
    • Pro template pack
    Open SpecStudio
  • Prompt Guardian's refinement dashboard: a support-agent system prompt in the editor with a clean static scan

    Prompt Guardian

    Gated prompt governance

    Attack, score and gate every system prompt change before it ships.

    Pro adds in Prompt Guardian

    • Advanced attack packs
    • OWASP LLM Top 10 (2025) report
    • Regression guard for CI
    Open Prompt Guardian
  • Dev Text Forge's workbench: an informal note about a deploy script in the source pane, next to the optimized output pane and quality gates

    Dev Text Forge

    Dev text optimizer

    Rewrite developer text into clear technical English that keeps every token.

    Pro adds in Dev Text Forge

    • Agent context mode
    • Token diet report
    • Batch optimize
    Open Dev Text Forge