Simple tools, zero clutter.
Free developer utilities and financial calculators. Everything runs in your browser β no sign-up, no uploads.
Developer tools
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AI Token Counter & Cost Estimator
Estimate LLM tokens and API cost for Claude, GPT, and Gemini from pasted text.
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Base64 Encode / Decode
Encode text to Base64 or decode it back, UTF-8 safe.
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AI Prompt Generator for Cinematic Websites
7 fill-in-the-blank AI prompts to design and build an animated, cinematic website β creative direction, experience map, hero, motion system, build plan, and audits.
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Claude Prompt Shortcuts Cheat Sheet
32 fact-checked Claude prompt shortcuts like /ACT and /TLDR β searchable, copyable, and clearly labeled as conventions, not built-in commands.
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Code to Image β Snippet Screenshots
Turn a code snippet into a clean shareable PNG with themed window chrome.
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Color Converter β HEX, RGB, HSL
Convert colors between HEX, RGB, and HSL with a live preview and shade scale.
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Cron Expression Explainer
Translate cron schedules into plain English and preview the next run times.
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CSV Cleaner
Trim whitespace, remove duplicate rows, and drop empty rows/columns from a CSV in your browser.
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Diff Checker β Compare Text
Compare two blocks of text line by line with additions and deletions highlighted.
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SHA-256 Hash Generator
Compute SHA-1, SHA-256, SHA-384, and SHA-512 hashes of text or files locally.
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JSON Formatter & Validator
Pretty-print, minify, and validate JSON with error line reporting.
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JWT Decoder
Decode JWT header and payload locally β token never leaves your browser.
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Markdown Preview
Live-preview Markdown as you type, rendered safely in your browser.
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Regex Tester
Test regular expressions with live match highlighting and capture groups.
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Screenshot to Text β Free OCR
Extract text from a screenshot or photo using in-browser OCR β no upload, copy the result instantly.
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Unix Timestamp Converter
Convert Unix epoch timestamps to human-readable dates and back.
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URL Encoder / Decoder
Percent-encode or decode text and break query strings into readable parameters.
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UUID Generator
Generate UUID v4 and v7 identifiers, one or in bulk.
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Vibe Coding Security Checklist
An 87-item pre-launch security checklist for AI-built apps β access control, RBAC, secrets, and legal pages, fact-checked against OWASP and NIST.
Calculators
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BMI Calculator
Body mass index from height and weight, metric or imperial, with WHO categories.
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Compound Interest Calculator
Growth of savings or investments with monthly contributions.
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Crypto Profit Calculator
Profit or loss on a crypto trade including exchange fees.
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Dividend Calculator
Annual dividend income, per-payout amount, and yield.
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Freelance Hourly Rate Calculator
The hourly rate you need to hit a target income after expenses, time off, and unbillable hours.
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US Inflation Calculator
What past dollars are worth today, using official US CPI data.
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Mortgage Calculator
Monthly payment and full amortization schedule for any loan.
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ROI Calculator
Return on investment from cost and revenue.
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Salary Converter
Convert between hourly, monthly, and annual pay.
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SIP / DCA Investment Calculator
Future value of monthly investing (SIP or dollar-cost averaging) at an expected return.
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Tax Calculator Philippines
Take-home pay after BIR income tax, SSS, PhilHealth, and Pag-IBIG.
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TDEE & Calorie Calculator
Daily calorie needs from the Mifflin-St Jeor equation and your activity level.
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Tip & Bill Split Calculator
Tip amount, total, and per-person share for any bill and party size.
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US Take-Home Pay Calculator
US paycheck after federal income tax, FICA, and optional state tax.
Everyday tools
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AI Prompt Generator for AI Agent Personas
10 fact-checked, fill-in-the-blank role-play prompts for ChatGPT, Claude & Gemini β business strategy, research, career, and workflow planning.
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AI Prompt Generator for Graphic Design
10 fill-in-the-blank AI prompts for graphic design β social graphics, posters, thumbnails, brand identity, logos, product ads, infographics, and slides.
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Carousel Maker β Text Slides
Turn plain text into a set of 1080Γ1080 carousel slide PNGs for Instagram or LinkedIn, downloaded as a zip.
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AI Prompt Generator for a Career & Salary Upgrade
8 fill-in-the-blank AI prompts to move up a salary band β upgrade blueprint, why-you're-underpaid analysis, resume and LinkedIn rewrites, target companies, interview prep, a negotiation script, and a 60-day search plan.
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AI Prompts for Cold Email & Sales Outreach
8 fact-checked, fill-in-the-blank AI prompts for cold email and sales outreach β plus what actually drives reply rates and CAN-SPAM/GDPR compliance basics.
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AI Prompt Generator for Content Creators
10 fact-checked, fill-in-the-blank AI prompts for content ideas, hooks, scripts, captions, AI images/videos, CTAs, and strategy.
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Countdown Timer β Shareable
Create a live countdown to any date and share it as a link.
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AI Prompt Generator for Executive Communication
12 fact-checked, fill-in-the-blank AI prompts for executive reports, emails, presentations, meeting notes, memos, and performance reviews.
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Fancy Text Generator
Turn plain text into ππ¨π₯π, πͺπ΅π’ππͺπ€, πΌπ¬π»π²πΉπ½, and other Unicode styles for bios and posts.
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Favicon Generator
Generate every favicon size, an .ico, and a web manifest from one image β download as a zip.
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Image Compressor β Shrink Images
Compress PNG, JPG, and WebP images in your browser with a quality slider and before/after size comparison.
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Image Converter β WebP, PNG, JPG
Convert images between WebP, PNG, and JPG in your browser. No upload, instant download.
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AI Image-to-Video Prompt Builder
Fact-checked prompt builder for AI image-to-video β combines action, body, camera, environment, and facial movement with a consistency lock.
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AI Prompt Generator for Reels Strategy
7 fact-checked, fill-in-the-blank AI prompts for Instagram Reels strategy β hooks, retention scripts, save-worthy ideas, diagnostics, trend adaptation, and a 7-day test plan.
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AI Prompt Generator for Job Applications
12 fact-checked, fill-in-the-blank AI prompts to tailor your CV, address gaps or a career pivot, write a cover letter, and prep for interviews.
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Mockup Studio β Phone, Tablet & Browser Frames
Frame a screenshot in a phone, tablet, or browser window mockup and download it as a PNG.
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NotebookLM PDF Analysis Prompts
10 fact-checked, fill-in-the-blank prompts for analyzing a PDF with NotebookLM or any AI chat tool β summaries, notes, study guides, and more.
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AI Prompt Generator for NotebookLM Study
5 fact-checked, fill-in-the-blank prompts that turn NotebookLM (Gemini Notebook) into a personal tutor β lectures, study guides, graded exams, and more.
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Password Generator
Generate strong random passwords locally with adjustable length and character sets.
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Phone Mockup Generator
Frame a screenshot in a clean phone bezel and download it as a PNG β no upload, no watermark.
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Pixel Editor β Sprite & Icon Drawing
Draw pixel art with pencil, eraser, and bucket fill on a 16/32/64 grid, and download it as a scaled PNG.
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QR Code Generator
Generate QR codes for URLs, Wi-Fi, or text and download as SVG or PNG. No expiry, no tracking.
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AI Prompt Generator for Replacing Your Income
9 fill-in-the-blank AI prompts to rebuild income after a job loss or alongside one β income-path finder, turning your job into a service, first clients, first $1,000, a one-person business, and a progress tracker.
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AI Prompt Generator for Starting an Online Business
8 fill-in-the-blank AI prompts to start an online business from zero β opportunity finder, demand validation, offer builder, a 7-day minimum viable business, customer acquisition, a sales system, a 30-day launch plan, and a weekly review.
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Sticker Maker
Add a colored die-cut outline to a photo or transparent PNG, with optional flat-background removal.
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Typing Speed Test β WPM & Accuracy
Type a passage and get instant words-per-minute and accuracy β no sign-up, no stored results.
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Word & Character Counter
Live word, character, sentence, and paragraph counts with reading time.
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AI Prompt Generator for Starting a YouTube Channel
6 fill-in-the-blank AI prompts to plan a YouTube channel β niche selection, channel identity, a 90-day content calendar, thumbnail and SEO packaging, monetization, and repurposing.
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AI Prompt Generator for YouTube Scripts
4 fill-in-the-blank AI prompts for YouTube scripts β hooks, a retention-structured full script, a section-by-section rewrite, and a one-shot draft.
PDF tools
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Delete PDF Pages
Remove specific pages from a PDF and download the rest, losslessly.
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JPG to PDF Converter
Turn JPG and PNG images into one PDF β A4, Letter, or fit-to-image.
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Merge PDF β Combine PDF Files
Combine multiple PDFs into one file, reordered however you like. No upload, no watermark.
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Rotate PDF Pages
Permanently rotate all pages or a range by 90Β° or 180Β°, losslessly.
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Split PDF β Extract Pages
Pull out a page range or split every page into separate PDFs, zipped.