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  • 23 free tools
  • Zero paywalls
  • No sign-up

23 free tools for SEO, PDFs and invoices

PDF editors, SEO checkers, technical audits and business calculators, built to actually get used. No sign-up, no paywalls, no "unlock full results".

Free tools
23
Categories
6
3 ratings
★ 5.0
Free forever
100%

New AI Crawler Checker 5.0 (2) See whether ChatGPT, Claude, Perplexity, Gemini and other AI bots may crawl a site, with an AI readiness score. Technical & SecurityOpen tool New Background Remover Remove image backgrounds with AI, then crop, resize, filter, watermark and compress, all in your browser. Image & DesignOpen tool Canonical Tag Checker Check a page's canonical tag and catch canonical mistakes. SEO & ContentOpen tool New Compress PDF Make a PDF smaller for email and upload limits, without uploading it anywhere. PDF & DocumentsOpen tool New Email Signature Generator Design a professional email signature for Gmail, Outlook and Apple Mail from ready templates. More ToolsOpen tool New Free Invoice Generator Create a professional invoice in your browser and download it as a PDF. Business & FinanceOpen tool New Free Website Audit Score your site on SEO, speed, security, AI visibility, leads, email and local SEO, side by side with a competitor. SEO & ContentOpen tool HTTP Status Checker See the status code and full redirect chain for one or many URLs. Technical & SecurityOpen tool Hyperlink Generator Turn a list of URLs into HTML anchor tags with the right rel and target. SEO & ContentOpen tool New JPG to PDF Turn photos and scans (JPG, PNG, WebP) into one PDF on A4, Letter or the image size. PDF & DocumentsOpen tool New Merge PDF Combine PDFs and images into one PDF in the order you want, in your browser. PDF & DocumentsOpen tool Meta Tag Analyzer Audit title, description, Open Graph, Twitter and other meta tags of a page. SEO & ContentOpen tool Noindex Tag Checker Find noindex in meta robots tags and X-Robots-Tag headers that keep a page out of search. SEO & ContentOpen tool Password Generator Generate strong passwords and check how strong yours is. Everything runs in your browser. More ToolsOpen tool New PayPal Fee Calculator Work out PayPal fees, currency conversion and what you receive, by country. Business & FinanceOpen tool New PDF Editor Add text, highlights, whiteout, shapes and your signature to any PDF page, in your browser. PDF & DocumentsOpen tool New QR Code Generator Create QR codes for links, WhatsApp, Wi-Fi, contacts and more, with your colours and logo. Image & DesignOpen tool Robots.txt Tester Test whether a crawler may fetch a path under a site's robots.txt. SEO & ContentOpen tool Schema Markup Validator Extract and validate the structured data (JSON-LD) on a page. SEO & ContentOpen tool SSL Checker 5.0 (1) Check SSL certificates for one or many domains: issuer, expiry, protocol and hostname match. Technical & SecurityOpen tool Stripe Fee Calculator Work out Stripe fees and what you receive, by country and card type. Business & FinanceOpen tool Website Speed Test Measure a page's server response, page weight and requests, with fixes for what slows it down. Technical & SecurityOpen tool Word Counter & Keyword Density Checker Count words and see which keywords and phrases a text or page uses most. SEO & ContentOpen tool

About the toolbox

What is the DigitalTreed Online Toolbox?

A free collection of 23 web-based tools across 6 categories: PDF editing, technical SEO audits, on-page content checks and business calculators. Built for site owners, marketers, developers, students and freelancers who need a fast, reliable answer without creating an account.

Checkers run live against the real source: a site's actual SSL certificate, robots.txt, HTTP response or structured data, instead of cached results. File tools like the PDF editor and background remover work inside your browser, so nothing is uploaded.

  • 4PDF & Documents
  • 8SEO & Content
  • 4Technical & Security
  • 3Business & Finance
  • 2Image & Design
  • 2More Tools

Browse by category

Six categories, one toolbox

Every tool fits one group, so you can jump straight to what you need.

PDF & Documents4 tools

Edit, sign, merge, compress and convert PDF files, processed right in your browser.

Compress PDF JPG to PDF Merge PDF PDF Editor

SEO & Content8 tools

Audit crawlability, indexing, structured data and on-page content before you publish.

Canonical Tag Checker Free Website Audit Hyperlink Generator Meta Tag Analyzer Noindex Tag Checker Robots.txt Tester Schema Markup Validator Word Counter & Keyword Density Checker

Technical & Security4 tools

Check SSL certificates, server responses, speed and how bots see your site.

AI Crawler Checker HTTP Status Checker SSL Checker Website Speed Test

Business & Finance3 tools

Calculate payment fees, create invoices and price your work with confidence.

Free Invoice Generator PayPal Fee Calculator Stripe Fee Calculator

Image & Design2 tools

Remove backgrounds, create QR codes and prepare images, no design software needed.

Background Remover QR Code Generator

More Tools2 tools

Handy everyday helpers: strong passwords, email signatures and quick generators.

Email Signature Generator Password Generator

Who it's for

Built for people who actually do this work

Whether you run a website, a business or a job application, there's a tool here for the task in front of you.

SEO pros & agencies

Check canonical, noindex, schema and status issues on any client site in one pass.

Developers & site owners

Verify SSL, redirects and page speed after every deploy, before visitors notice.

Students & job seekers

Merge, compress and sign PDFs to hit upload limits for forms and applications.

Freelancers & small business

Know your real payment fees, create invoices and price work with confidence.

Why DigitalTreed

Why these tools don't feel like the others

No lead-gen forms disguised as free tools. No "unlock full results" paywalls.

  1. Genuinely free

    All 23 tools, no paywalled results, no "sign up to see more".

  2. Live, not cached

    Checkers run against the real source, right now.

  3. Privacy-first

    File tools run in your browser: documents and photos are never uploaded.

  4. Honest scope

    Every tool tells you what it checks, and what it doesn't.

Also from DigitalTreed: FindlancerA free platform connecting freelancers with real client work. Visit Findlancer

FAQ

Frequently asked questions

Are these tools really free?

Yes. All 23 tools are free, with no sign-up and no paywalled results. URL checkers have a fair-use limit of 10 checks a minute so they stay fast for everyone.

Do I need an account?

No. Open any tool and start: no login, email or trial.

Is my data stored when I use a tool?

File tools such as the PDF editor process everything in your browser and never upload your files. URL checkers fetch the live page you enter; a result is kept for a few minutes to speed up repeat checks, then dropped.

Which tool should I start with?

PDF tools for documents and applications, the technical tools (SSL, HTTP status, speed) after a deploy, the SEO tools (schema, canonical, noindex, meta tags) before publishing, and the business calculators before pricing or invoicing a client.

Can agencies use these tools on client sites?

Yes. Every checker works on any public URL, so they suit client audits and pre-launch checks.

How often are new tools added?

Regularly. New tools appear here with a "New" badge as soon as they are published.

Missing a tool you actually need?

Tell us what would save you real time. We build what people ask for.

Suggest a tool Chat with us