# Toolstik

> Get it done. Free online tools for images, PDFs, business, developers, and more. Fast, privacy-first, no signup required.

Toolstik is a privacy-first utility platform. Tools run in the browser whenever practical: files and text are not uploaded to Toolstik servers for those tools. No account is required.

- Homepage: https://www.toolstik.com/
- All tools: https://www.toolstik.com/tools
- Blog: https://www.toolstik.com/blog
- Sitemap: https://www.toolstik.com/sitemap.xml
- Full list for language models: https://www.toolstik.com/llms-full.txt
- About: https://www.toolstik.com/about
- Privacy: https://www.toolstik.com/privacy

## Tools

- [Profit Margin Calculator](https://www.toolstik.com/tools/profit-margin-calculator): Calculate profit, margin, and markup from revenue and cost. Includes reverse calculation.
- [Image Compressor](https://www.toolstik.com/tools/image-compressor): Compress JPG, PNG, and WebP images in your browser. Batch processing supported.
- [Merge PDF](https://www.toolstik.com/tools/merge-pdf): Combine multiple PDF files into one document. Set the file order before merging.
- [JPG to PDF](https://www.toolstik.com/tools/jpg-to-pdf): Convert JPG and PNG images to PDF with page size, orientation, and margin controls.
- [PDF to JPG](https://www.toolstik.com/tools/pdf-to-jpg): Convert every PDF page to a JPG image. Set quality and download as a ZIP.
- [Invoice Generator](https://www.toolstik.com/tools/invoice-generator): Create professional invoices with line items, tax, discount, and notes. Download as PDF.
- [JSON Formatter & Validator](https://www.toolstik.com/tools/json-formatter): Format, validate, and minify JSON. Tree view with syntax error highlighting.
- [PDF Compressor](https://www.toolstik.com/tools/pdf-compressor): Reduce PDF file size in your browser by rebuilding the document structure.
- [Image Resizer](https://www.toolstik.com/tools/image-resizer): Resize JPG, PNG, and WebP images to custom width and height in your browser.
- [WebP Converter](https://www.toolstik.com/tools/image-converter): Convert images to WebP, JPG, or PNG with quality control — including AVIF input when supported.
- [HEIC to JPG](https://www.toolstik.com/tools/heic-to-jpg): Convert HEIC and HEIF photos to JPG in your browser. Batch export supported.
- [PDF Splitter](https://www.toolstik.com/tools/pdf-splitter): Split a PDF into separate files or extract page ranges. Processed locally in your browser.
- [Markup Calculator](https://www.toolstik.com/tools/markup-calculator): Calculate selling price, markup, and margin from cost—or find markup from your price.
- [ROI Calculator](https://www.toolstik.com/tools/roi-calculator): Calculate return on investment (ROI) from amount invested and amount returned.
- [Discount Calculator](https://www.toolstik.com/tools/discount-calculator): Apply one or two stacked discounts and see final price and total savings.
- [JWT Decoder](https://www.toolstik.com/tools/jwt-decoder): Decode JWT header and payload locally. Inspect claims—signature is not verified.
- [Base64 Encoder / Decoder](https://www.toolstik.com/tools/base64-encoder-decoder): Encode or decode text to Base64 with optional URL-safe output—all in your browser.
- [URL Encoder / Decoder](https://www.toolstik.com/tools/url-encoder-decoder): Encode or decode URLs and query components with encodeURI or encodeURIComponent.
- [Unix Timestamp Converter](https://www.toolstik.com/tools/timestamp-converter): Convert Unix timestamps to readable dates and dates back to epoch seconds or milliseconds.
- [Regex Tester](https://www.toolstik.com/tools/regex-tester): Test JavaScript regular expressions with live match highlighting, capture groups, and flags.
- [Word Counter](https://www.toolstik.com/tools/word-counter): Count words, characters, sentences, and paragraphs with reading time and keyword density.
- [Case & Slug Converter](https://www.toolstik.com/tools/case-converter): Convert text to Title Case, sentence case, camelCase, snake_case, kebab-case, or a clean URL slug.
- [Meta Title & Description Generator](https://www.toolstik.com/tools/meta-tag-generator): Check title and meta description length, preview the search result, and copy ready-made meta tags.
- [UTM Link Builder](https://www.toolstik.com/tools/utm-builder): Build campaign URLs with utm_source, utm_medium, and utm_campaign for Google Analytics.
- [Schema Markup Generator](https://www.toolstik.com/tools/schema-generator): Generate JSON-LD structured data for FAQ, Article, Organization, and Product pages.
- [VAT / GST Calculator](https://www.toolstik.com/tools/vat-gst-calculator): Add or remove VAT or GST from a price. Use common rates or enter a custom percentage.
- [Word to PDF](https://www.toolstik.com/tools/word-to-pdf): Convert a Word document (.docx) to PDF in your browser. Nothing is uploaded.

## Categories

- [Image Tools](https://www.toolstik.com/categories/images): Compress, resize, and convert images
- [PDF & Document Tools](https://www.toolstik.com/categories/documents): Merge, convert, and manage PDFs
- [Business Tools](https://www.toolstik.com/categories/business): Invoices, calculators, and business utilities
- [Developer Tools](https://www.toolstik.com/categories/developer): Format, validate, and transform data
- [Calculators](https://www.toolstik.com/categories/calculators): Business and financial calculators
- [SEO Tools](https://www.toolstik.com/categories/seo): Meta tags and SEO utilities
- [Text Tools](https://www.toolstik.com/categories/text): Text formatting and transformation

## Pillar guides

- [Free SEO and Text Tools: Meta Tags, Schema, UTM, Word Count](https://www.toolstik.com/blog/free-seo-and-text-tools): Free SEO and text tools that run in your browser. Check meta titles, generate JSON-LD schema, build UTM links, create URL slugs, and count words.
- [Best Free Image Tools Online - Compress, Resize, Convert & HEIC](https://www.toolstik.com/blog/best-free-image-tools-online): The best free image tools online: compress, resize, convert to WebP, and turn HEIC into JPG in your browser, with no uploads, sign-ups, or watermarks.
- [Best Free PDF Tools Online: Merge, Compress, Convert & Split](https://www.toolstik.com/blog/best-free-pdf-tools-online): The best free PDF tools online for merging, splitting, compressing, and converting PDFs, all running in your browser with no uploads, sign-ups, or watermarks.
- [Free Business Tools for Freelancers and Small Businesses](https://www.toolstik.com/blog/free-business-tools-freelancers): Free business tools for freelancers: an invoice generator plus profit margin, markup, ROI, and discount calculators that run in your browser with no signup.
- [Free Developer Tools Online: JSON, JWT, Base64, URL, Timestamp & Regex](https://www.toolstik.com/blog/free-developer-tools-online): Free developer tools online that run in your browser: format JSON, decode JWTs, encode Base64 and URLs, convert Unix timestamps, and test JavaScript regex.
- [Free Online Tools — The Complete Toolstik Toolbox](https://www.toolstik.com/blog/free-online-tools-hub): Every free Toolstik tool in one place, organized by task. PDFs, images, invoices, calculators, developer utilities, and SEO tools, all processed in your browser.

## Optional

- Contact: https://rsroshi.dev