Cobalt Studio

Digital products for freelancers, developers & entrepreneurs. Ship faster.

๐Ÿ“ฆ Products

220 ChatGPT Prompts โญ Popular

220 curated prompts for small business workflows. Marketing, operations, content, strategy. 85-page PDF. $9

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AI Prompt Vault (210 prompts)

210 high-quality prompt templates across marketing, coding, writing, and productivity. Works with ChatGPT, Claude, Gemini. $12

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Freelancer OS โ€” Notion Template

Clients, projects, invoices, time & taxes โ€” in one Notion dashboard. $19

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Startup Landing Page Kit

5 modern, dark-mode HTML landing page templates. SaaS, waitlist, newsletter, app, portfolio. $19

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The Side Hustle Database

150+ side hustle ideas with income potential, startup cost, and difficulty. Filter by skills & budget. $7

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Dev Productivity Pack

Bash/zsh aliases for Git, Docker & Node. Setup scripts. 80+ curated dev tools & resources. $15

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The Cold Email Playbook New

40+ cold email templates for freelancers, founders & job seekers. Frameworks, subject lines, follow-up sequences. $9

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SaaS Launch Kit New

Launch checklist + 14-day timeline + landing page QA + launch emails + outreach templates. $15

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Client Communication Kit New

Copy/paste client emails + checklists: kickoff, weekly updates, scope creep, invoice follow-ups, testimonials. $9

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Freelancer Templates Starter Pack Free New

10+ copy/paste templates: proposal, SOW, contract, kickoff/status emails, invoice follow-ups, testimonials, change requests + more. Free

Download โ†’

Contract + SOW Bundle Coming soon

Contracts + SOWs + clause library + client emails to prevent scope creep and get paid on time. Early access

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Freelancer Pricing & Packaging Kit Coming soon

Build 3-tier packages and price for value (scripts + worksheets included). Expected $19

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Freelancer Email Templates Pro Coming soon

63 copy/paste emails (Warm/Direct/Firm) for onboarding, scope changes, status updates, late payments, and referrals. Expected $15

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๐Ÿ›  Free Tools

no signup. see all tools โ†’ ยท free templates โ†’

๐ŸŽฒ ChatGPT Prompt Generator Free

Pick a category, get a ready-to-use business prompt. Copy and paste into ChatGPT or Claude.

Try it free โ†’

๐Ÿ’ฐ Freelance Rate Calculator Free

Calculate your ideal hourly and project rates based on income goals, expenses, and billable hours.

Calculate now โ†’

๐Ÿง  Client Brief Generator Free New

Generate a clean project brief + client questionnaire + copy/paste email to request the info. No signup.

Generate brief โ†’

๐Ÿงพ Freelance Invoice Generator Free New

Create a clean invoice in under 60 seconds (items, tax, due date). Print or download as HTML. No signup.

Generate invoice โ†’

๐Ÿท๏ธ Business Name Generator Free

Enter keywords + industry, get 50 brandable name ideas. Copy in one click. No signup.

Generate names โ†’

๐Ÿงช Side Hustle Quiz Free New

Answer 5 questions and get side hustle ideas that fit your time, budget, and skills.

Take the quiz โ†’

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