Case Convert
Convert text to uppercase, lowercase, title case, sentence case and more. Preview, copy or download the result in your browser.
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Your favorite Mycelgrid apps in this browser. No account required.
Favorites stay on this browser and device. Clearing browser site data removes them.
Favorite Apps
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Duplicate File Finder
Find duplicate files locally, verify eligible exact copies with SHA-256, compare files, and export a review plan. No uploads or deletion.
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Computer Keyboard Test
Press keys on your physical keyboard and see them respond on screen. Test common layouts and identify keys your browser can observe.
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CSV Viewer
Open table files, search and inspect rows, then keep a chosen view. Your files stay in this browser page.
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Mycelgrid Notepad
Write and organize browser-local Notes and Projects. Find your work and download portable copies.
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Text Cleaner
Fix spacing, line breaks, and repeated lines. Review the changes and keep control of your original text.
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Word Counter
Count words and characters, check a writing target, and plan reading or speaking time. Keep your draft in perspective.
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Text Compare
Compare two versions and review added and removed lines and words. Keep a useful local report.
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Alphabetizer
Put your list in alphabetical order. Choose natural, numeric or length sorting, then copy or keep a local report.
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GPA Calculator
Calculate semester and cumulative GPA from grades and credit hours, with an editable grade scale and transparent quality-point breakdown.
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Time Calculator
Add or subtract durations in days, hours, minutes, and seconds, or shift a clock time across midnight with an exact day offset.
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Hours Calculator
Calculate hours and minutes between a start and end time, subtract an optional break, handle overnight shifts, and see decimal hours.
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Time Card Calculator
Calculate weekly work time from clock-in/out punches, subtract lunch, handle overnight shifts, and see hours/minutes plus decimal hours.
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Reading Time Calculator
Estimate how long text takes to read or speak from pasted text or a word count. Adjust the pace and keep the calculation in your browser.
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Typing Speed Test
Measure WPM and accuracy, review weak keys, then practice and retry. Your test stays in this browser page.
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Typing Practice
Practice typing with words, sentences, numbers, focused letters and custom text. Review accuracy and missed keys, then repeat what needs work.
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Space Bar Click Test
Test space-bar speed with timed CPS runs or use a free counter. Results stay in this browser page.
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Click Speed Test
Measure clicking speed with left- or right-click CPS tests across fixed durations. Results stay in this browser page.
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Reaction Time Test
Check visual reaction time across five randomized rounds with median, average, best, slowest and false-start tracking. Results stay in this browser page.
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Click Counter
Count clicks, taps or focused key presses with subtract, undo, reset and copy controls. The tally stays in this browser page.
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Mouse Tester
Test mouse buttons, scroll wheel, held clicks, rapid repeat behavior and browser-observed pointer rate. Your diagnostic stays in this browser page.
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Microphone Test
Test microphone input with a live level meter, waveform, input selection and a short local playback sample. Microphone audio is not uploaded by the app.
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Speaker & Headphone Test
Test left, right, and both stereo channels with short browser-generated audio and a stereo sweep. No microphone permission is required.
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Webcam Test
Check whether your webcam works with a live browser preview, camera selection, resolution and frame-rate details. Camera video is not uploaded by the app.
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Dead Pixel Test
Fill your screen with controlled solid colors and visually check for suspicious dead, stuck, bright, dark, or abnormal pixels.
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Refresh Rate Test
Estimate the refresh rate reaching your browser window in Hz, check median frame time and timing stability, and repeat the test without installing software.
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Invoice Generator
Create a free invoice with client details, line items, discounts and tax, then print it or save it as PDF. No account required.
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Quote Generator
Create a business quote with line items, scope, validity, discounts and tax, then print it or save it as PDF. No account required.
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Purchase Order Generator
Create a purchase order with buyer, vendor, ship-to, line items, discounts, tax and terms, then print it or save it as PDF.
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Receipt Generator
Create a free receipt for a completed payment with line items, discounts, tax and payment details, then print it or save it as PDF.
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