PDF & documents
Inspect signatures and prepare browser-first document content with the tools available today
A focused collection for PDF signature checks, document markup prep, tables, and file-to-text workflows. Fuller document editing remains a roadmap item.
We do not have a full PDF editor or office converter suite yet. This page honestly surfaces the document-related tools already registered so you can verify files, prepare source content, and move attachments through browser-friendly formats.
Tools in this hub
Featured picks
Language support
Common tasks
Verify document signatures
Check signed PDF files before sharing or archiving them in a workflow that depends on trust signals.
Prepare Markdown, HTML, and tables
Draft cleaner source content for guides, reports, and document-heavy support material.
Move attachments through safe formats
Convert file payloads and structured data when a document needs to fit an API, email, or validation step.
Current scope and roadmap
Roadmap context: richer PDF conversion, merging, OCR, and office-format inspection are not registered yet. Use the existing tools here for signature validation, Markdown prep, CSV cleanup, and Base64 file handling instead of a generic doorway page.
Featured tools
Start with the registered tools that cover the most common jobs in this workflow, then browse the full list.
PDF Signature Checker
Inspect an uploaded PDF for signature dictionaries, ByteRange entries, SubFilter values, and embedded signature contents.
Markdown Preview & Editor
Free online Markdown editor with live preview. Write and preview Markdown with GFM support, tables, code blocks, and more — all in your browser.
Markdown Table Generator — Free Online GFM Table Builder
Generate well-formatted GitHub Flavored Markdown (GFM) tables with an interactive visual editor. Set column alignment, add or remove rows and columns, and copy the output instantly.
Base64 File Converter — Free Online
Convert files to Base64 and Base64 back to files with this free online tool. Supports images, PDFs, and any binary file. No sign-up required.
All tools in this collection
Browse every registered tool in this collection and jump straight to the next useful link.
PDF Signature Checker
Inspect an uploaded PDF for signature dictionaries, ByteRange entries, SubFilter values, and embedded signature contents.
Base64 File Converter — Free Online
Convert files to Base64 and Base64 back to files with this free online tool. Supports images, PDFs, and any binary file. No sign-up required.
Markdown Preview & Editor
Free online Markdown editor with live preview. Write and preview Markdown with GFM support, tables, code blocks, and more — all in your browser.
Markdown Table Generator — Free Online GFM Table Builder
Generate well-formatted GitHub Flavored Markdown (GFM) tables with an interactive visual editor. Set column alignment, add or remove rows and columns, and copy the output instantly.
HTML WYSIWYG Editor — Rich Text to HTML
Free online WYSIWYG HTML editor. Create rich text content with formatting tools and get clean HTML output. Supports headings, lists, code blocks, blockquotes, and more. No sign-up required.
CSV Viewer & Editor — Free Online
View, edit, sort, and export CSV data in a spreadsheet-like table. Supports custom delimiters (comma, tab, semicolon, pipe). Powered by PapaParse — no data leaves your browser.
Data Format Converter — Free Online
Convert between JSON, YAML, TOML, and CSV instantly with this free online data format converter. Swap formats with one click, no sign-up required.
Related categories and collections
Continue with adjacent category pages and task collections that solve the next step.
Text
Browser-based text helpers for Markdown, lists, tables, Unicode lookups, readability checks, and reusable snippets.
Development
Everyday helpers for regex testing, diffs, cron expressions, Docker snippets, Markdown cleanup, and other build-and-debug chores.
Data formats
Structured data tools for JSON formatting, YAML and XML conversion, schema validation, CSV editing, and API-ready output.
Web & auth
Practical browser utilities for JWTs, HTTP requests, headers, cookies, SEO checks, OpenAPI files, and other web troubleshooting tasks.
Image tools
Start with image cleanup, transparent PNGs, compression, icon export, palette extraction, and print-friendly sizing in one browser-first workflow.
Education & study
A mixed collection for homework, revision, classroom examples, notes, and self-checks across math, statistics, Markdown, and text-focused practice.