Compute gross margin %, markup %, and profit from any two of COGS, selling price, or markup—currency-neutral, with instant visual feedback and copy-ready results.

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Professional Invoice Generator

Create itemized invoices with automatic subtotal, tax, and grand total calculations.

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NDA Generator

Draft a professional non-disclosure agreement with jurisdiction, purpose, duration, and party details.

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Business Loan Calculator

Estimate monthly payment, total interest paid, and total repayment for business loans using amount, APR, and term.

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OP Brand DNA Engine

High-end business name generator using weighted phonosemantics + archetypes.

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Web & Dev Utilities

10 tools

Encoding, media, security, and SEO plumbing—emerald dev channel.

JSON Formatter & Validator

Validate, beautify, and minify JSON with real-time syntax errors (line/column).

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Pro Base64 Encoder & Decoder

Encode text to Base64, decode back to UTF-8, and turn images into Data URIs with preview.

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Secure Password & Secret Generator

Generate passwords with entropy meter, bulk batches, and developer secret keys (hex, alphanumeric, Base64).

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Pro Multi-Code Minifier

Minify HTML, CSS, or JavaScript in-browser: strip comments/whitespace, smart HTML for pre/code, CSS color shortening—with KB savings report and copy feedback.

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Pro URL Encoder & Decoder

Encode with encodeURIComponent, decode with decodeURIComponent, auto-detect direction, and batch multiple URLs—one per line—with copy feedback.

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Pro WebP & Image Converter

Convert PNG, JPG, or BMP to WebP in the browser with a quality slider, side-by-side previews, and byte savings—no upload, instant download.

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Professional CSS Color Converter

Parse HEX, RGB, or HSL live, copy multi-format exports and CSS variables, and check WCAG contrast vs white/black text—all local in your browser.

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Smart Dummy Data Generator

Generate Lorem Ipsum or realistic fake identities in plain text, JSON, or CSV—bulk 1–50 rows for UI mocks and API tests.

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Pro Hash Generator & Verifier

Compute MD5, SHA-1, SHA-256, and SHA-512 in your browser, copy digests per row, and verify a pasted checksum against the live result—no upload.

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Pro Robots.txt & Sitemap Generator

Draft robots.txt with bot presets, Allow/Disallow rules, and sitemap URLs; build sitemap XML with priority and changefreq.

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Our promise

Fast. Local. Private. No data leaves your browser.

These tools run in your session for predictable performance—ideal for drafts, exports, and sensitive copy with no cloud round-trip.