Tool directory
All tools
Browse every SolveKit utility. Each tool solves one real problem quickly, clearly, and without requiring an account.
Typing & keyboard
Typing Test Studio
Measure speed, accuracy and consistency, turn your own mistakes into a targeted drill, and check every key on the keyboard. Runs in the browser, nothing is uploaded.
Organize PDF Pages
Reorder, rotate, duplicate and remove pages on a visual board, then export the final arrangement as a new PDF.
PDFRedact PDF Safely
Mark sensitive areas, rebuild the visible pages, remove the original searchable layer and verify the exported copy before sharing.
PDFPDF Privacy Checker
Inspect metadata, forms, annotations, attachments, hidden layers, active actions and signatures before sharing a PDF.
PDFRemove PDF Metadata
See the document title, author, subject, keywords, creator and producer, then create a clean copy with those fields removed.
PDFCompare PDF Files
Compare two PDFs locally by page and extracted text, identify changed pages and quantify added or removed words.
PDFOCR PDF
Recognize text from scanned PDF pages in the browser, review confidence and export text or a searchable PDF copy.
PDFFill PDF Forms
Detect standard PDF form fields, fill their real values locally and optionally flatten a final non-editable copy.
PDFSign PDF Visually
Place a typed visual signature and date on selected pages locally, with an honest warning that it is not a certificate-backed digital signature.
PDFProtect PDF with a Password
Encrypt a PDF locally with a password using modern 256-bit PDF encryption, then download the protected copy.
PDFUnlock PDF with the Known Password
Use the password you already know to decrypt a PDF locally and create an unlocked working copy.
PDFRotate PDF Pages
Rotate individual or selected PDF pages visually and export the corrected document without altering the original.
PDFDelete PDF Pages
Select unwanted pages visually, remove them from the working order and export a new PDF while keeping the original intact.
PDFExtract PDF Pages
Choose pages or ranges and create a separate PDF containing only that selection, with a visual preview before export.
PDFCrop PDF Pages
Trim page margins by percentage with a live preview, apply the crop to selected pages and export a new PDF.
PDFAdd Page Numbers to PDF
Add configurable page numbers to every page or a selection, preview their position and export locally.
PDFWatermark PDF
Add a custom text watermark with controlled opacity, angle, size and page selection, then export the result locally.
PDFJPG to PDF
Turn JPG and PNG images into one PDF locally, preserving image order and fitting each image cleanly onto its page.
PDFPDF to JPG
Render PDF pages as high-quality JPG or PNG images locally and download all selected pages in one ZIP.
PDFRepair PDF
Rewrite a damaged or badly structured PDF locally with qpdf, recover readable objects when possible and report a clear failure when not.
PDFPDF Accessibility Checker
Run a practical PDF accessibility preflight for tags, document language, title and scan-only pages, with honest manual-review guidance.
PDFWebsite Ad Revenue Calculator
Estimate daily, monthly, and annual website advertising revenue from page views and Page RPM.
SEO & MarketingROAS Calculator
Calculate return on ad spend, contribution after advertising, and break-even ROAS.
SEO & MarketingAI Prompt Builder
Turn a goal, context, constraints, and output format into a clear reusable AI prompt.
SEO & MarketingGrade Calculator
Calculate a percentage and letter grade from points earned and possible.
Education