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Finds stress and deflection of a cantilever beam under multiple loads and moments.

Checks compression members for buckling with Euler, Johnson and secant methods.

Finds stress and deflection of a fixed-fixed beam under point loads, moments and distributed loads.

Estimates bolt diameter and preload for a joint using VDI 2230 rules.

Computes pitch diameter and outside diameter of roller chain sprockets.

Gives hole and shaft limits for ISO fits such as H7/h6.

Designs a compression spring for a target load and checks stress.

Computes rate and loads for extension springs from dimensions.

Solves acceleration and forces on a block on a slope with friction.

Calculates range, height and flight time of a projectile.

Gives pendulum period and frequency from length.

Calculates press-fit pressure and stress for shaft and hub assemblies.

Gives Acme thread dimensions and tolerances per ASME B1.5.

Computes dimensions for UNC, UNF and UNEF threads.

Finds tightening torque and preload for UNC, UNF and UNEF bolts.

Recommends clearance hole sizes for inch bolts, screws and studs.

Gives counterbore diameter and depth for socket head cap screws.

Computes torque, force and efficiency for lead screws.

Finds tightening torque and preload for metric bolts by size and grade.

Recommends clearance hole sizes for metric bolts and screws.

Lists tap drill sizes for metric threads and calculates by thread engagement.

Computes dimensions of metric trapezoidal lead-screw threads.

Looks up NPT pipe thread dimensions by size.

Gives the drill size to use before tapping unified threads.

Computes area moment of inertia for common cross-sections.

Calculates section modulus for I-beams, channels, rectangles and pipes.

Finds shear stress and angle of twist for solid and hollow shafts.

Converts between decibels and amplitude or power ratios.

Shows how identifiable your browser fingerprint is compared with other visitors.

Models startup ownership across pre-seed, seed and Series A rounds including option pools and dilution.

Playground of ready-made CSS animations you can tune and export.

Lets you paint a pattern on the GitHub contribution graph and produces a script to create matching commits.

Online notepad that autosaves as you type, supports plain or rich text and lets you share notes.

Open-source web chat front end that works with several AI providers using keys you supply.

Financial derivatives calculator with 171+ models including Black-Scholes.

Computes dice roll probability distributions using a small scripting language.

Minifies uploaded HTML files to cut their size.

Converts uploaded JSON files to CSV; one of many conversion tools on the AnyFile Flow site.

Live tally of words, characters, sentences, paragraphs and estimated reading time for pasted text.

Teacher-facing set of tools for adapting lessons to different learners, with accessibility and AAC support, designed for Gemini Canvas.

Open-source web app that writes privacy policies and terms of use for mobile and web apps.

Visualize a database schema as a diagram from query output and edit or export it.

Suggests nearby colours that meet the WCAG contrast requirement.

Flowchart and diagram editor that saves to your device or cloud drive and exports PNG, SVG or PDF.

Adapts any article or topic to a chosen reading level with questions.

Privacy-first outliner and knowledge base with backlinks, run in the browser.

Browser mind map editor with keyboard shortcuts, themes and image export.

Cloud mind map canvas with FreeMind import and export and quick keyboard-driven editing.

Draw database diagrams by typing a simple table-definition text.

Generates typed models in many languages from JSON, JSON Schema or GraphQL samples.