Create professional documents & social designs
Design useful business, career and social assets directly in your browser. Your text and local images stay in the editor while you work, and every tool includes a live preview and practical export option.
Wedding Invitation Maker
Design a personalised wedding invitation with editable names, date, venue, message, colours and a high-resolution PNG export.
Open toolBirthday Invitation Maker
Create a colourful birthday invitation with the celebrant name, age, party date, venue, message and downloadable PNG.
Open toolResume Builder
Build a clean professional resume with contact details, summary, skills, experience and education, then print or save as PDF.
Open toolCertificate Maker
Create a professional achievement, participation or appreciation certificate with editable recipient, issuer, date and colours.
Open toolInvoice Generator
Create a simple professional invoice with business, client, line items, tax, discount and automatic totals, then print or save as PDF.
Open toolQuotation Generator
Prepare a professional price quotation with client details, line items, tax, discount, validity and automatic totals.
Open toolLetterhead Generator
Create a clean business letterhead with company name, contact details, recipient, subject and letter body, ready to print or save as PDF.
Open toolBusiness Card Maker
Design a modern business card with name, role, company, phone, email, website and brand colours, then download PNG.
Open toolYouTube Thumbnail Maker
Create a 1280 × 720 YouTube thumbnail with editable headline, subtitle, label, colours and an optional local background image.
Open toolInstagram Post Maker
Create a square 1080 × 1080 social post with headline, body text, handle, colours and an optional local background image.
Open toolWhy 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.