Creator Tools

Create professional documents & social designs

Design business, career and social assets in your browser. Manual editing and export remain free. Opt in to prepaid-credit AI text drafts for a head start; only the text you enter in the AI prompt is sent to the model provider, not your local images.

Wedding Invitation Maker

Design a personalised wedding invitation with editable names, date, venue, message, colours and a high-resolution PNG export.

Birthday Invitation Maker

Create a colourful birthday invitation with the celebrant name, age, party date, venue, message and downloadable PNG.

Resume Builder

Build a clean professional resume with contact details, summary, skills, experience and education, then print or save as PDF.

Certificate Maker

Create a professional achievement, participation or appreciation certificate with editable recipient, issuer, date and colours.

Invoice Generator

Create a simple professional invoice with business, client, line items, tax, discount and automatic totals, then print or save as PDF.

Quotation Generator

Prepare a professional price quotation with client details, line items, tax, discount, validity and automatic totals.

Letterhead Generator

Create a clean business letterhead with company name, contact details, recipient, subject and letter body, ready to print or save as PDF.

Business Card Maker

Design a modern business card with name, role, company, phone, email, website and brand colours, then download PNG.

YouTube Thumbnail Maker

Create a 1280 × 720 YouTube thumbnail with editable headline, subtitle, label, colours and an optional local background image.

Instagram Post Maker

Create a square 1080 × 1080 social post with headline, body text, handle, colours and an optional local background image.

Why use OneCalcApp Creator Tools?

These tools are designed for quick, practical creation rather than locked templates or forced sign-up flows. You can edit content, preview the result and export the finished file using browser-based controls.

For visual designs, use only photos, logos and artwork you own or are authorised to publish. For invoices, quotations, certificates and business documents, you are responsible for checking legal, tax, regulatory and branding requirements that apply to your use case.

Popular creator workflows

Events & celebrations

Create wedding invitations, birthday invitations and printable certificates with clear event details and reusable colour themes.

Career & business

Build a professional resume, invoice, quotation, letterhead and business card without sending form data to a third-party document service.

Social content

Prepare YouTube thumbnails and Instagram posts at standard export dimensions with readable text and optional local background images.

Privacy-aware editing

The editing experience is designed to run in the browser. Avoid entering sensitive personal or financial information you do not need in the final document.