25 Days of Free
Developer Tools
Open a new door each day of December and unwrap a micro-tool to boost your productivity. From regex testers to AI debugging helpers โ all free, forever.
๐๏ธ The Advent Calendar
New doors unlock at midnight UTC each day in December
How It Works
1. Check Back Daily
A new tool unlocks every day from December 1st to 25th.
2. Open the Door
Click to reveal the day's tool and start using it instantly.
3. Ship Faster
Use the tools to boost your productivity. They are completely free!
๐ ๏ธ Tools Already Unlocked
Missed a day? No problem โ all unlocked tools stay available forever.
Regex Tester
Write regex. Test instantly. Never guess again.
JSON Formatter
Paste messy JSON. Get beauty + validation.
JWT Decoder
Paste token. See claims, expiry, warnings.
Timestamp Converter
UNIX โ ISO โ human dates. One click.
Text Case Converter
camelCase, snake_case, kebab. Paste โ convert.
Request Tester
Curl in your browser. Test endpoints fast.
Endpoint Health Checker
Test response times. Get performance stats.
QR Generator
Any text/URL โ scannable QR. Download now.
HTTP Status Explainer
418? 429? Plain English + memes.
Favicon Generator
Logo โ all favicon sizes. One download.
OpenGraph Preview
URL โ instant link preview. Perfect every time.
Code Diff Viewer
Two snippets โ highlighted changes.
Duck Duck Code
Explain your bug. Get unstuck instantly.
Caffeine Calculator
Sleep time โ perfect caffeine schedule.
Git Cheat Sheet
Search git commands. Copy. Done.
Import Checker
Paste code. Spot unused imports.
Changelog Generator
Git diff โ polished release notes.
Client-Side Image Optimizer
Drag images โ get 9+ optimized variants โ download ZIP.
MVP Validator
Describe your idea. Is it MVP-ready?
Portfolio Generator
Quick form โ Live portfolio site โ Share instantly.
Resume Formatter
Raw CV โ ATS-safe or pretty layouts.
Cover Letter Generator
CV + job ad โ perfect cover letter.
Job Tracker
Track applications. Never lose a lead.
App Name Generator
Idea โ catchy names. Instantly.
Christmas Code Caroler
Your 2025 commits โ holiday stats card.
Word from the Creator
Built for Builders
(by a beginner)
Hey I'm Lewis ๐ and I've been following the indie dev scene for a while now. This December, I'm finally trying it myself. I'm starting by learning the reiterative cycle of ship โ feedback โ improve โ ship by building 25 tools in 25 days. Each tool is a chance to practice shipping fast, gathering real feedback, and iterating quickly. If you're also on the journey of building in public, let's learn together. So have a play around with the site, leave some feedback, and let's make something great this December!
FAQ
Frequently Asked Questions
Got questions? We've got answers.
Ship Advent is a free advent calendar for developers! Every day from December 1st to 25th, we unlock a new micro-tool to help you code faster, debug smarter, and ship with joy. ๐
Yes! Every tool is 100% free to use. Some advanced AI-powered tools require a free account to help us manage API costs, but there's no payment required.
Most tools work without an account. A few AI-powered tools (like the debugging assistant) require a free login so we can manage usage fairly. Sign up takes 10 seconds!
Absolutely! Once a tool is unlocked, it stays free. Think of December as the grand reveal โ the tools are yours to use.
Ship Advent is built by Lewis Will (LWHSolutions) as a gift to the developer community. Follow along on X and Instagram for behind-the-scenes and updates!
Still have questions? Contact me
Ready to Unwrap Some Tools?
Join other developers opening doors this December. No signup required for most tools!
๐ Open Today's Door