About SoloKit
A free, comprehensive toolkit for developers, freelancers, and solo creators — built to handle the essential tasks of running a business alone.
What is SoloKit?
SoloKit is a free, all-in-one online utility hub designed specifically for independent developers, freelancers, designers, and solo creators. It provides a collection of practical tools that cover the everyday needs of running a solo business — from generating invoices and contracts to checking SEO, testing APIs, and creating QR codes.
Unlike traditional SaaS platforms that charge monthly subscriptions and require lengthy onboarding, SoloKit is built to be immediately usable. Every tool is designed to be completed in under 60 seconds, with no sign-up required for most features.
SoloKit is not a product designed to capture user data or lock customers into recurring payments. It is a resource for the independent workforce — a set of functional, reliable tools that work when you need them, without the administrative overhead.
Who SoloKit is For
SoloKit is built for people who work alone. This includes:
- Freelancers — designers, writers, consultants, and creatives who need to send invoices, manage contracts, and maintain a professional presence.
- Developers — engineers and coders who need tools for API testing, JSON formatting, JWT debugging, code snippets, and SQL validation.
- Solo Founders — startup builders and indie makers who handle everything from marketing to operations and need fast, reliable utilities.
- Creators — content producers, YouTubers, and social media managers who need graphics, short links, QR codes, and SEO insights.
The Tools
SoloKit currently offers over 25 tools, organized into categories that reflect the core needs of a solo business:
| Category | Tools Included | What They Do |
|---|---|---|
| Business | Invoice Generator, Contract Builder, Sololink | Create branded PDF invoices, build legal contracts with digital signatures, and manage a custom link-in-bio page. |
| Developer | JSON Formatter, JWT Debugger, API Tester, Hash Generator, UUID Generator, SQL Formatter | Format and validate JSON, debug JSON Web Tokens, test API endpoints, generate secure hashes and UUIDs, and format SQL queries. |
| Marketing | Link & QR, SEO Checker, Graphic Studio | Shorten URLs, generate customizable QR codes, audit website SEO on 30+ signals, and design social media graphics. |
| Privacy | Temp-Mail, Privacy Policy Generator | Create disposable email addresses for testing and generate GDPR, CCPA, and NDPR compliant privacy policies. |
| Utility | Source Code Viewer, HTTP Headers Inspector, Robots.txt Generator, Sitemap Generator, Favicon Generator | View source code, inspect response headers, generate robots.txt and XML sitemap files, and create favicon packages. |
| Creative | Graphic Studio, Converters, Text Diff, Markdown Previewer | Create graphics, convert file formats, compare texts side-by-side, and preview Markdown in real time. |
For Developers
SoloKit includes a dedicated set of developer tools that are useful for daily coding workflows, debugging, and system administration.
- JSON Formatter & Validator — parse, format, and validate JSON data with a clean tree view.
- JWT Debugger — decode, verify, and encode JSON Web Tokens with full header, payload, and signature visibility.
- API Tester — send GET, POST, PUT, and DELETE requests with custom headers and view responses.
- Hash & UUID Generator — generate MD5, SHA-1, SHA-256, SHA-512, Bcrypt hashes, and UUID versions 3, 4, 5, and 7.
- SQL Formatter — format and validate SQL queries for improved readability.
- Source Code Viewer — view the source of any public URL with syntax highlighting.
- HTTP Headers Inspector — inspect response headers, caching rules, and security configurations.
Why SoloKit
SoloKit is designed to be practical, not extravagant. It exists to solve specific problems that independent workers face daily, without creating new ones.
Free, always
No subscriptions, no trials, no hidden fees. The tools are available to everyone at no cost.
No sign‑up required
Use any tool without creating an account. Optional accounts are available for saved data.
Privacy first
No tracking, no profiling, no data selling. Cookies are used only for authentication and preferences.
Built for speed
Every tool is designed to be completed in under 60 seconds. No loading, no waiting.
Contact
For feedback, suggestions, or general inquiries, you can reach us directly.
SoloKit is built by independent developers and creators, for independent developers and creators.