Education & study
Study math, Markdown, tables, and text analysis with lightweight browser tools
A mixed collection for homework, revision, classroom examples, notes, and self-checks across math, statistics, Markdown, and text-focused practice.
This hub collects the tools that help students, teachers, and self-learners solve problems, build clearer notes, and verify results without switching to heavier software.
Tools in this hub
Featured picks
Language support
Common tasks
Work through calculations step by step
Solve equations, matrices, percentages, and summary statistics while checking your intermediate thinking.
Prepare cleaner notes and tables
Build Markdown tables, preview written answers, and shape revision material that is easier to share.
Analyze text used in study material
Measure text length and structure when comparing reading passages, prompts, or assignment drafts.
Featured tools
Start with the registered tools that cover the most common jobs in this workflow, then browse the full list.
Math Evaluator
Evaluate arithmetic expressions with correct operator precedence and a fixed set of math functions, parsed in the page rather than executed as code.
Matrix Calculator
Calculate matrix transpose, determinant, row and column sizes from rectangular, finite-number matrices.
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.
Statistics Calculator
Calculate count, sum, mean, median, min, max, variance, and standard deviation from numeric datasets.
All tools in this collection
Browse every registered tool in this collection and jump straight to the next useful link.
Math Evaluator
Evaluate arithmetic expressions with correct operator precedence and a fixed set of math functions, parsed in the page rather than executed as code.
Matrix Calculator
Calculate matrix transpose, determinant, row and column sizes from rectangular, finite-number matrices.
Quadratic Equation Solver
Solve ax² + bx + c quadratic equations, calculate discriminants, and return real or complex roots.
Prime Factorization Calculator
Factor integers into primes for number theory, coding challenges, cryptography learning, and math homework checks.
Statistics Calculator
Calculate count, sum, mean, median, min, max, variance, and standard deviation from numeric datasets.
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.
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.
Text Statistics
Count characters, words, lines, and UTF-8 bytes for pasted text so you can size content before reuse.
Related categories and collections
Continue with adjacent category pages and task collections that solve the next step.
Math
Interactive calculators for algebra, matrices, percentages, statistics, and general arithmetic when you need transparent results.
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.
Finance calculators
Use practical finance tools for amortization, mortgage comparison, APR estimates, savings plans, VAT or GST math, and generic paycheck take-home planning.
International text
A practical cluster for encoding issues, character lookups, locale-sensitive cleanup, phone and email normalization, and text that must survive many systems.
PDF & documents
A focused collection for PDF signature checks, document markup prep, tables, and file-to-text workflows. Fuller document editing remains a roadmap item.