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Fast, privacy-friendly browser tools and calculators designed to save you time. No downloads. No registration. 100% free.

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account_balance Finance & Wealth

Plan your financial independence with premium investment calculators. Model compound interest, inflation, and pricing scenarios.

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SaaS Pricing Calculator

Calculate profitable B2B and B2C SaaS pricing using CAC, churn, LTV, and exact operating margins.

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Compound Interest Calculator

Calculate your future wealth with interactive charts, inflation adjustments, and FIRE milestone tracking.

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Freelance Rate Calculator

Stop undercharging. Calculate the exact hourly rate you need to cover taxes, expenses, and reach your financial goals.

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FIRE Age Calculator

Calculate your exact FIRE age. Compare Lean, Fat, Barista, and Coast FIRE paths with interactive client-side simulations.

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video_camera_front Creator & Social Tools

Essential utilities for modern short-form content creators. Optimize your vertical videos for TikTok, Instagram Reels, and YouTube Shorts.

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Caption Formatter

Optimize social media captions with invisible zero-width spaces. Analyze hooks and manage platform limits instantly.

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Social Safe Zone Previewer

Preview exactly how your 9:16 videos appear behind platform UI overlays. Avoid hidden captions and blocked hooks instantly.

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Screenshot Mockup Generator

Create beautiful, browser-framed mockups for your SaaS landing pages and App Store screenshots instantly. 100% private.

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YouTube Sponsorship Calculator

Calculate your sponsorship rates based on views, niche CPMs, and engagement. Generate professional pitch emails automatically.

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sports_esports Gaming & Esports

Professional esports tools and calculators designed for competitive players. Convert sensitivity settings, calculate eDPI, optimize mouse DPI, and improve your aiming consistency across all major FPS engines.

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Game Sensitivity Converter

Mathematically convert your mouse sensitivity and DPI between Valorant, CS2, Warzone, Apex Legends, and more. Perfect your muscle memory.

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Aim Trainer & Reaction Test

Test your raw mechanical reaction speed and clicking accuracy. Compare your performance against professional eSports benchmarks.

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code Developer & Design

Lightweight, privacy-first utilities for frontend developers, UI/UX designers, and software engineers. Calculate, measure, and generate code without ever leaving your browser or sacrificing personal data.

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Case Converter

Instantly format text strings into programming naming conventions (camelCase, snake_case) or editorial styles (Title Case).

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AI API Cost Calculator

Simulate infrastructure spend across OpenAI, Anthropic, Gemini, and open-source models. Calculate your exact token costs instantly.

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AI ROI Calculator

Calculate your exact break-even timeline, net savings, and equivalent AI workforce capacity when migrating manual tasks to AI APIs.

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Realistic UI Copy Generator

Stop using Latin dummy text. Generate realistic, industry-specific placeholder copy and JSON data for your Figma mockups instantly.

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LocalPixel App

The ultimate pixel-perfect measurement and mockup tool for frontend developers and UI/UX designers. Measure anything on your screen instantly.

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Universal Image Converter

100% private, client-side converter suite. Convert HEIC, WebP, AVIF, PNG, and JPG files instantly in your browser with zero server uploads.

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menu_book Premium Creator Guides

Level up your design skills and digital product business with our complete playbooks. Downloadable prompt systems and automated workflows.

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ChatGPT Prompt Systems for Freelance Designers

10x your creative workflow. The ultimate ChatGPT prompt library for UX/UI designers, graphic artists, and creative freelancers.

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AI Toolkit for Etsy Sellers

Scale your digital product business. Pre-built AI workflows to generate SEO-optimized listings, product ideas, and automate service.

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article Latest Guides & Tutorials

TikTok Safe Zone Dimensions

Learn the exact 1080x1920 layout and UI overlap areas for TikTok.

Best Valorant Sensitivity in 2026

Discover the exact settings and eDPI ranges used by VCT professional players.

What is eDPI? (Full Guide)

Learn the mathematical formula to find your true aim speed across any game.

Why users trust our tools

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Privacy-First

All calculations happen locally in your browser. We never upload your inputs or personal information to our servers.

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Lightning Fast

No bulky software installations or background processes. Built with highly optimized Vanilla JavaScript for zero latency.

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Pinpoint Accuracy

We use exact engine multipliers and proven mathematical formulas to ensure our converters deliver 1:1 precise results.

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