Private, fast, free forever
Every tool below runs entirely in your browser using modern web APIs. Your files and text never touch our servers, there's no signup, and there are no watermarks on what you create. We build these utilities to help small businesses, freelancers and developers get things done.
Licensing & Compatibility
Windows 11 Compatibility Checker
Guided TPM 2.0, Secure Boot, CPU and RAM checklist with a plain-English verdict.
Open Windows 11 Compatibility Checker →Which Office Do I Need?
Answer five questions and get the right Office edition and year for your work.
Open Which Office Do I Need? →Microsoft 365 vs One-Time Purchase
Compare subscription cost over time against our one-off licence prices.
Open Microsoft 365 vs One-Time Purchase →Office Version Comparison
Filterable feature matrix across every Office edition and year we stock.
Open Office Version Comparison →Licence Transfer Eligibility
Retail or OEM, new PC or new motherboard — see what Microsoft's terms allow.
Open Licence Transfer Eligibility →Windows & Office System Requirements
Pick a version and see the full official minimum requirements.
Open Windows & Office System Requirements →Office & Productivity
Documents & PDF
Free Invoice Generator
Create and download professional PDF invoices in seconds. Add your logo, line items, and notes — no signup, no watermark.
Open Free Invoice Generator →PDF Tools
Merge, split, compress and convert images to PDF. All processing happens in your browser.
Open PDF Tools →Sign a PDF
Draw, type or upload a signature, drag it onto the page and download the signed PDF. Runs entirely in your browser.
Open Sign a PDF →Email Signature Generator
Create a professional HTML email signature for Gmail, Outlook or Apple Mail. Live preview, copy to clipboard, no signup.
Open Email Signature Generator →Office to PDF Converter
Turn DOCX, XLSX and PPTX files into PDFs right in your browser.
Open Office to PDF Converter →Purchase Order & Quote Generator
Create professional PDF purchase orders and quotes in seconds.
Open Purchase Order & Quote Generator →Image
HEIC to JPG & Image Converter
Convert HEIC, HEIF, PNG, JPG, WebP, GIF, BMP, TIFF, ICO and SVG. Resize and compress in your browser.
Open HEIC to JPG & Image Converter →QR Code Generator
Turn any text or URL into a downloadable QR code. PNG and SVG output, with colour and size options.
Open QR Code Generator →Colour Picker & Palette
Pick a colour, copy HEX/RGB/HSL, and generate complementary, analogous and shade palettes.
Open Colour Picker & Palette →Security
IP Reputation Check
Check an IPv4 address against major DNS blocklists (Spamhaus, SpamCop, Barracuda, SORBS).
Open IP Reputation Check →DMARC Report Analyzer
Parse DMARC aggregate XML reports in your browser — per-source-IP SPF/DKIM/DMARC counts.
Open DMARC Report Analyzer →Phishing Link Checker
Basic heuristic checks on a URL — punycode, IP hosts, shorteners, brand lookalikes.
Open Phishing Link Checker →Email Header Analyzer
Paste raw email headers to map the delivery hops, SPF/DKIM/DMARC results and delays.
Open Email Header Analyzer →Utilities
Password Generator
Generate strong, random passwords with a length slider, character toggles, and one-click copy.
Open Password Generator →Data Converter
Convert CSV ↔ JSON, JSON ↔ XML, JSON ↔ YAML and Markdown → HTML. Copy or download.
Open Data Converter →Text Tools
Case conversion, remove duplicates, trim whitespace, reverse and sort lines.
Open Text Tools →Word & Character Counter
Live word, character, sentence, paragraph counts and estimated reading time.
Open Word & Character Counter →Encoder / Decoder
Base64, URL and HTML-entity encode and decode with copy-to-clipboard.
Open Encoder / Decoder →JSON Formatter & Validator
Pretty-print or minify JSON with clear validation errors and line/position info.
Open JSON Formatter & Validator →SPF Record Generator
Build a valid SPF TXT record for Google, Microsoft 365, Brevo, SES, Mailgun and custom IPs.
Open SPF Record Generator →DMARC Record Generator
Generate the _dmarc TXT record with policy, reports, alignment and percentage.
Open DMARC Record Generator →DKIM Key Generator
Create a 2048-bit RSA DKIM key pair in your browser and get the DNS TXT record.
Open DKIM Key Generator →DNS Record Lookup
Look up A, AAAA, MX, TXT, CNAME and NS records for any domain, live from public DNS.
Open DNS Record Lookup →SPF Record Checker
Validate your SPF TXT record: mechanisms, 10-lookup limit, policy and duplicate records.
Open SPF Record Checker →DKIM Record Checker
Query selector._domainkey to confirm your DKIM public key is published and valid.
Open DKIM Record Checker →DMARC Record Checker
Look up _dmarc and parse policy, alignment, reporting — flags weak p=none setups.
Open DMARC Record Checker →BIMI Record Checker
Check default._bimi for your brand logo URL and Verified Mark Certificate.
Open BIMI Record Checker →Diff Checker / Text Compare
Compare two texts side by side with every added, removed and changed line marked.
Open Diff Checker / Text Compare →Regex Tester & Builder
Test regular expressions live, inspect capture groups and reuse common patterns.
Open Regex Tester & Builder →Hash Generator
Generate MD5, SHA-1, SHA-256 and SHA-512 hashes from text or a file.
Open Hash Generator →UUID Generator
Generate v4 and v7 UUIDs, one at a time or in bulk.
Open UUID Generator →Cron Expression Builder
Build cron expressions visually, in plain English, with the next run times.
Open Cron Expression Builder →Markdown to HTML Converter
Convert Markdown to HTML and back, with a live preview.
Open Markdown to HTML Converter →Timestamp / Epoch Converter
Convert Unix timestamps to readable dates across timezones, and back again.
Open Timestamp / Epoch Converter →More free tools coming soon. Got an idea? Let us know.