11 tools · pay once · offline
AI tools
Offline tools for working with AI: write specs that keep coding agents on track, build Claude skills, brief agents, keep prompt libraries and make AI-drafted writing sound like you. Pay once, no account, runs in your browser.

Keyword
resume to job post matcher: see the keywords you are missing, mark what you really have, get the AI prompt that tailors your resume honestly
$8
Receipts
AI answer fact-check tool: pulls every checkable claim out of a ChatGPT, Claude or Gemini answer and hands you the search links
$6
Handoff
AI agent brief builder: tell ChatGPT agent, Claude or Gemini exactly what to do, what never to do, and when to stop and ask
$8
Plainspoken
make AI writing sound human: finds em dashes, AI vocabulary, fake contrasts and chatbot leftovers, and fixes the safe ones in one click
$7
Blueprint
vibe coding spec writer: turn an app idea into a PRD, an AGENTS.md and step-by-step build prompts for Lovable, Bolt, Cursor and Claude Code
$9
Promptbook
your personal prompt library: fill-in-the-blank prompts, tags, favourites, one-click copy, 24 proven starters
$6
Shotlist
AI video prompt builder: storyboard your shots, keep characters consistent, export prompts for Veo, Sora, Kling and Runway
$8
Darkroom
AI photo edit prompt builder: headshots, outfit swaps, old photo restoration, retro flash and toy-figure looks that keep your face
$6
Onboard
custom instructions builder for ChatGPT, Claude and Gemini: a 3-minute interview that makes every answer fit you
$6
Skillsmith
AI skill builder: answer six questions, get a valid SKILL.md and an upload-ready zip for Claude and other agents
$7
LLM API Cost Calculator
26 Models, Google Sheets + Excel
$7More categories
Bundles and kits · Money and business · Indie dev and launch · Home, family and school · Sports and fitness · Food and drink · Making and hobbies · Trading and quant