Free tools for people who build things.
Favicons, QR codes, campaign links, social cards, email signatures, invoices, and a dozen more — the small jobs that eat an afternoon. Built for founders, makers, and small teams who’d rather get it done and move on. Open one and start; your work stays on your machine, and nothing here costs a thing.
- Runs in your browser
- Nothing is uploaded
- Free — no sign-up
Favicon generator
Turn a PNG or SVG into a complete, real-world favicon set — .ico, Apple touch, maskable, web manifest, and the exact markup to paste.
BuilderQR code generator
Make crisp, customizable QR codes for a link, menu, Wi-Fi, contact card, or message — with your colors and logo. Download PNG or SVG.
CommerceUTM link builder
Build clean, consistent campaign URLs with proper utm_ parameters — presets, validation, a saved history, and a one-tap QR for every link.
CRMOpen Graph image maker
Design a sharp 1200×630 social share card — title, accent, logo, and theme — and download the PNG that makes your links look intentional.
CMSEmail signature generator
Build a clean, professional HTML email signature with your photo, logo, and links — then copy it straight into Gmail, Outlook, or Apple Mail.
EmailInvoice generator
Create a clean, itemized invoice with your logo, taxes, and totals — and download a print-ready PDF. No account, no watermark.
B2B · Wholesale · FleetEmail deliverability checker
Generate and check your SPF, DKIM, and DMARC DNS records — so your email lands in the inbox instead of spam.
EmailMeta tag generator
Write title and description tags with a live Google and social preview — then copy the full meta block for your <head>.
CMSBrand color palette generator
Turn one brand color into matching color harmonies plus a full 50–950 tint and shade scale, with CSS variables and Tailwind config — ready to paste.
BuilderMargin & markup calculator
Work out price, margin, markup, profit, and break-even from any two numbers — the math founders redo every week.
CommerceQuote & estimate generator
Create a clean, itemized quote or estimate with your logo, an expiry date, and totals — and download a print-ready PDF.
B2B · Wholesale · FleetStructured data generator
Generate valid JSON-LD schema for your business, products, articles, and FAQs — the markup that earns rich results.
CMSColor contrast checker
Check any text and background pair against WCAG AA and AAA — and see the largest readable size at a glance.
BuilderBarcode generator
Generate scannable Code128, UPC, EAN, and SKU barcodes with a valid check digit — download PNG or SVG.
CommerceDigital business card
Build a tap-to-save digital business card — a vCard download and a QR code that drops your details into any phone.
CRMPrivacy policy generator
Generate a clear, customizable privacy policy and terms of service from a short form — copy or download in minutes.
CMSDomain availability checker
Check whether a domain is available across popular extensions in one go — find the name before you build the brand.
BuilderThe tools are free. The platform behind them runs the whole business.
Every tool here is built on sparx — one platform for your website, your content, and, when you sell, your commerce. Activate the modules you need, on one login, one bill, and one data layer. Publish a content site with no checkout, run a CRM on its own, or sell to the world. It's all first-class.
One platform, not twelve tabs
Your site, content, CRM, email, commerce, and B2B live in one place — one login, one bill. Stop renting a dozen disconnected tools and paying someone to wire them together.
One source of truth
Every module sits on the same data. A customer, a page, an order, a campaign — one record, read everywhere. No sync jobs, no Zapier, no version that disagrees with the other version.
Pay only for what you switch on
Modules turn on independently. Run CMS on its own, CRM on its own, or the full stack — all of it first-class. No tiers, no seat minimums, no paying for capability you never touch.
API-first and AI-native
Every feature is an API, and a built-in MCP server lets Claude, ChatGPT, or Copilot read and write your live business data in plain English. Ask for it; it's done. The dashboard is just one way in.
Same platform. From a free favicon to your whole business
sparx is the modular content and commerce OS — your website, CMS, CRM, email, commerce, B2B, and AI, each switched on when you need it, all on one data layer and one bill. These tools handle a single job for free. sparx handles the rest, for years.