Batch image studio
Resize, convert and rename images in one workflow. Save settings for next time.
Open tool →No signup
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Resize, convert and rename images in one workflow. Save settings for next time.
Open tool →Count characters and bytes, then preview whitespace and duplicate-line cleanup.
Open tool →Save focus and rest intervals and start your personal routine.
Open tool →Calculate percentages and changes, and compare sequential discounts.
Open tool →Create QR images for URLs, text and Wi-Fi connections.
Open tool →Assign participants per expense and split every last won accurately.
Open tool →Calculate date differences and save important dates.
Open tool →Convert length, mass, temperature and area. Save common pairs.
Open tool →Pixelate selected areas and add text watermarks to images.
Open tool →Arrange photos and screenshots and join them horizontally or vertically.
Open tool →Turn images into PDFs, merge documents or extract selected pages.
Open tool →Convert colors, check contrast and save your palettes.
Open tool →Pick names, make teams, roll dice, flip coins, spin a roulette or draw a ladder with secure randomness.
Open tool →Calculate expressions and save them with a name for later.
Open tool →Format and validate JSON, and convert Base64, URL and HTML entity encoding, and letter case.
Open tool →Create passwords and random integers from secure random numbers and see the entropy estimate.
Open tool →Browse and search text emoticons, copy them in one tap, and keep favorites and recent items in this browser.
Open tool →Inspect JPEG capture details and GPS presence, and remove metadata losslessly.
Open tool →Calculate semester and major GPAs and the grades needed for your target.
Open tool →Calculate loan repayment schedules and after-tax savings interest.
Open tool →Convert numbers between bases 2 to 36 and turn text into binary or hex bytes.
Open tool →Add and subtract time, total work intervals, and convert decimal hours
Open tool →Convert Unix timestamps and dates in either direction by time zone
Open tool →A simple notepad that autosaves in your browser. Export and import .txt files; nothing is sent to a server.
Open tool →Compare two texts line by line, highlight changed words or characters, and copy the result in unified diff format.
Open tool →Test JavaScript regular expressions and see matches, capture groups and replacement results.
Open tool →Calculate SHA hashes of text or files and generate UUID v4/v7. Files are never sent to a server.
Open tool →A safe live Markdown previewer. HTML is never run and external images are not loaded.
Open tool →Build gradients and box shadows with a live preview and copy the CSS code.
Open tool →Create Latin Lorem ipsum, Korean or English dummy text by word, sentence or paragraph and copy it.
Open tool →Calculate Korean severance and weekly holiday pay and compare wages with minimum wages by country.
Open tool →Calculate age, next birthday, days lived, animal sign and zodiac sign.
Open tool →Calculate country-specific BMI, normal weight range, BMR and estimated daily energy needs.
Open tool →Estimate take-home pay and deductions from an annual or monthly salary using simplified tax and social insurance rules by country.
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Files and text are processed in your browser, without sending them to another server.
Saved settings and favorites stay in this browser. Clearing browser data removes them.
No signup or ads. Check each tool’s limitations if something does not work as expected.