Looking for free online tools? We built 684 of them — 353 completely free, 331 premium — all accessible at spunk.codes. No signup required for free tools. No ads cluttering the interface. Just fast, clean tools that actually work.
This is the most comprehensive collection of web-based tools built by a single person using vibe coding and AI. Every tool was built, tested, and deployed in under 30 days as part of the SPUNK13 empire.
Monthly payments, amortization schedule, total interest
Body mass index with health category
Split bills, custom tip percentages
Any loan type, interest rates, terms
Hourly to annual, tax estimates
Percentage of, increase, decrease
Return on investment for any scenario
Square footage to cost estimate
Length, weight, temperature, volume, area
Real-time rates for 150+ currencies
HEX, RGB, HSL, CMYK conversions
Any timezone to any timezone
Bytes, KB, MB, GB, TB
Binary, decimal, hex, octal
Secure passwords with custom rules
Placeholder text, paragraphs, words
URLs, text, WiFi, vCards
Random palettes, complementary colors
V4 UUIDs for development
777 templates at clown.best
Title, description, OG tags
JSON-LD for LocalBusiness, Article, FAQ
XML sitemap from URL list
Custom robots.txt builder
Analyze keyword usage in text
Performance recommendations
Words, characters, sentences, paragraphs
Upper, lower, title, sentence case
Convert markdown to clean HTML
Pretty print and validate JSON
Encode special characters
Encode and decode Base64
Resize to any dimensions
Pick colors from any format
CSS gradients with live preview
CSS box-shadow builder
CSS border-radius visual editor
Create favicons from text or image
Professional invoices in seconds
AI-powered name suggestions
HTML email signatures
GDPR-compliant privacy policies
The complete collection includes tools for developers (code formatters, regex testers, API testers), crypto (wallet generators, hash calculators, address validators), social media (post schedulers, hashtag generators, bio generators), education (grade calculators, GPA calculators, study timers), health (calorie calculators, heart rate zones, sleep calculators), finance (compound interest, debt payoff, budget planners), and dozens of other categories.
Every tool is built with the same dark theme, fast loading, mobile responsive, and zero ads on free tools. Premium tools ($49/month) include advanced features, batch processing, and API access.
353 tools completely free. No signup. No ads. Just tools that work.
Visit spunk.codes →