ToolPatch

One page. One job. Done.

Mini Tools Collection

Useful one-page tools for real work

ToolPatch is a growing collection of focused utilities. Each page handles one task with clear inputs, fast results, and practical outputs.

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    Conversion Tools
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    Angle Converter

    Convert angles between deg, rad, and grad.

    Convert angular units for math, engineering, and graphics workflows.

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    Cooking Measurements Converter

    Convert kitchen volume units like tsp, tbsp, cups, ounces, pints, and liters.

    Convert common cooking measurement units with quick equivalents for recipe scaling and prep.

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    Data Size Converter

    Convert data sizes across bytes, KB, MB, GB, and TB.

    Useful for storage estimates, file size planning, and cloud budgeting.

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    Energy Converter

    Convert energy units: J, kJ, cal, kcal, Wh, kWh, and BTU.

    Convert thermal and electrical energy units for engineering, nutrition, and utility contexts.

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    Fuel Economy Converter

    Convert fuel economy across mpg US, mpg UK, L/100km, and km/L.

    Convert fuel efficiency units used across automotive regions with full equivalents output.

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    HEIC to JPG Converter

    Convert HEIC images to JPG where browser support is available.

    Upload HEIC files and export JPG output using local browser decoding when supported by platform capabilities.

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    JPG to PNG Converter

    Convert JPG images to PNG format in-browser.

    Upload a JPG image and convert it to PNG for lossless workflows and transparent-ready editing.

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    PNG to JPG Converter

    Convert PNG images to JPG format in-browser.

    Upload a PNG file and export JPG output with adjustable quality settings.

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    Power Density Converter

    Convert power density between hp/L and kW/L.

    Convert engine and motor specific output metrics across horsepower per liter and kilowatt per liter.

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    Power Unit Converter

    Convert between PS, HP, BHP, and kW power units.

    Convert engine and motor power ratings across PS, HP, BHP, and kW with quick all-unit output.

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    Pressure Altitude Converter

    Calculate pressure altitude from altimeter settings or station pressure.

    Convert aviation/weather pressure inputs to pressure altitude in feet and meters.

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    Shoe Size Converter

    Convert shoe sizes across US men's, US women's, UK, EU, and JP(cm).

    Approximate shoe size conversion across major regional sizing systems.

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    SVG to PNG Converter

    Rasterize SVG files to PNG at configurable scale.

    Upload an SVG and export PNG output with selectable scaling for web assets and previews.

    Conversion Tools
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    Temperature Converter

    Convert Celsius, Fahrenheit, and Kelvin values instantly.

    One-page converter for common scientific and everyday temperature units.

    Conversion Tools
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    Torque Converter

    Convert torque between Nm, lb-ft, and kgf-m.

    Convert mechanical torque units for automotive, motorsport, and engineering workflows.

    Conversion Tools

    Pressure Converter

    Convert pressure units: Pa, kPa, bar, psi, and atm.

    Ideal for engineering checks, tire pressure, and process control tasks.

    Conversion Tools

    Speed Converter

    Convert speed across m/s, km/h, mph, and knots.

    Useful for transport planning, sports metrics, and navigation.

    Conversion Tools

    Unit Converter

    Convert length values across metric and imperial units.

    Convert between meters, kilometers, centimeters, millimeters, miles, feet, and inches. Useful for engineering specs, logistics, and daily conversion tasks.

    Conversion Tools

    Volume Converter

    Convert liters, milliliters, gallons, quarts, and cups.

    Helps with recipes, lab prep, and fluid volume planning.

    Conversion Tools

    Weight Converter

    Convert kg, g, lb, oz, and tonnes accurately.

    Useful for shipping, nutrition, fitness, and engineering workflows.