Utilities Pro Pro

Prompt Guardian 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 Prompt Guardian

  • Advanced attack packs · Red-team your prompt with indirect injection through documents and tool output, Markdown exfiltration, encoding obfuscation, multi-turn role-play jailbreaks and system-prompt extraction.
  • OWASP LLM Top 10 (2025) report · Turn attack, suite and evaluation results into a stakeholder report mapped to LLM01–LLM10, with evidence, remediation and Markdown, HTML or PDF export.
  • Regression guard for CI · Compare two prompt versions or runs, flag attacks that newly succeed and score drops past your threshold, and export a pass/fail JSON verdict for CI.
  • 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 · Every save kept in the cloud, with a side-by-side diff and one-click restore into your draft.
  • HTML and PDF export · Share polished prompts with stakeholders who never open a Markdown file.
  • Token and context budget · See how much of each model's context window your system prompt uses.

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.

  • Prompt Guardian's refinement dashboard: a support-agent system prompt in the editor with a clean static scan

    Prompt Guardian

    Gated prompt governance

    You are here

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

    PromptForge

    Prompt engineering toolbox

    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
    Open PromptForge