Free online tools
Practical tools for independent work. No account required. Business, Invoices, Seller, PDF, Images, Text, Developer, Email
Project quote
Price your time and direct costs.
Project profit
Measure profit after labor and fees.
Freelance hourly rate
Plan a rate from annual income and billable time.
Break-even calculator
Find the sales volume needed to cover fixed costs.
Discount calculator
Calculate sale prices and savings.
Ecommerce profit
Include shipping, platform fees, advertising and refunds.
Platform fee calculator
Estimate fees using your own platform rates.
Advertising ROAS
Compare attributed revenue with advertising spend.
Shipping allocation
Allocate shipment cost by total item weight.
Payment due date
Calculate a due date from invoice terms.
Quote PDF generator
Create a document and print or save it as PDF.
Invoice generator
Create a document and print or save it as PDF.
Receipt generator
Create a document and print or save it as PDF.
Word and character count
Count text length and reading time.
Case converter
Convert text to upper, lower, title or sentence case.
Remove duplicate lines
Keep the first occurrence of each exact line.
Compare text lines
Compare exact lines in two texts; order changes appear as differences.
JSON formatter
Validate and pretty-print JSON.
Timestamp converter
Convert Unix seconds or milliseconds to UTC and local time.
URL encode / decode
Encode or decode a URL component.
Regular expression tester
Test JavaScript patterns in an isolated worker.
Email subject checker
Check subject length without claiming deliverability.
Email link generator
Build and preview a mailto link with recipients, subject and body.
Email signature generator
Preview a signature and copy it into your mail settings.
Virtual email generator
Generate sample email addresses from random names or a TXT username list.
Email extractor and grouping
Extract email addresses from text or HTML and group by size or domain.
Code beautifier
Format JavaScript, CSS, HTML, XML and SQL in your browser.
Image / Base64 converter
Convert image files to Base64 and decode Base64 image data.
SVG to image
Convert SVG files or source to PNG, JPG and WebP.
Markdown converter
Edit and preview Markdown, or convert HTML to Markdown.
Image compressor
Process JPEG, PNG and WebP images locally, including batches.
Image resizer
Process JPEG, PNG and WebP images locally, including batches.
Image converter
Process JPEG, PNG and WebP images locally, including batches.
Image watermark
Process JPEG, PNG and WebP images locally, including batches.
Images to PDF
Files are processed in your browser. Encrypted PDFs are not supported.
Merge PDFs
Files are processed in your browser. Encrypted PDFs are not supported.
Extract / split PDF
Files are processed in your browser. Encrypted PDFs are not supported.
Reorder PDF pages
Files are processed in your browser. Encrypted PDFs are not supported.
Email address checker
Check syntax, duplicates and common domain spelling mistakes in email lists.
Email header analyzer
Inspect routing, authentication results and visible privacy details from raw email headers.
Email bounce analyzer
Explain common SMTP and enhanced delivery status codes in bounce messages.
Email content risk checker
Review subject length, links, image descriptions and common promotional wording.
Email DNS and authentication
Query MX, SPF, DKIM and DMARC; draft SPF and DMARC records.
Email privacy and link inspector
Mask email addresses and inspect URL structure without opening links.
Email list operations
Merge lists, calculate intersections and differences, and export domain statistics.
Find email addresses in files
Extract unique addresses from pasted content or local TXT, CSV, HTML and EML files.
Email template composer
Create an HTML email and a plain-text version from editable message fields.
HTML email editor and CSS inliner
Preview HTML email, inline static CSS at a selected width and inspect compatibility risks.