Client Side Tools
6290 tools available
These tools run entirely in your browser. Everything you enter, from text and numbers to images, PDFs, and other files, is processed locally on your device and never uploaded to a server. No sign up or installation needed.
Convert text between emojis and emoji codes. Transform emojis into readable shortcodes (like :smile:) or convert emoji codes back into actual emoji characters.
Encode or decode text using the classic Caesar cipher with adjustable shift values. Encrypt messages by rotating letters forward or decrypt by shifting backward.
Encrypt or decrypt text using the classic Vigenere polyalphabetic cipher with keyword-based substitution. Encode messages with repeating keyword patterns for stronger classical encryption.
Apply ROT13, ROT47, ROT5, or ROT18 rotation ciphers to encode and decode text. Simple letter rotation cipher for basic text obfuscation and classic encryption methods.
Replace words with matching emojis or turn emojis back into words using the to-emoji library.
Count and calculate the total value of euro coins. Enter the quantity of each coin denomination (1c, 2c, 5c, 10c, 20c, 50c, €1, €2) to get the total amount.
Count and calculate the total value of Norwegian krone coins. Enter the quantity of each coin denomination (1 kr, 5 kr, 10 kr, 20 kr) to get the total amount.
Calculate electric vehicle trip charging costs, energy requirements, and charging stops based on distance, battery capacity, and charging rates.
Generate Zalgo text with customizable intensity. Add combining Unicode characters above, through, and below text to create glitchy, corrupted, or creepy text effects.
Calculate KDA (Kill/Death/Assist) ratio and other gaming statistics. Track your performance in games with kills, deaths, and assists metrics.
Calculate clay shrinkage for pottery and ceramics. Find final dimensions after drying and firing, or determine what size to make your piece to achieve desired final dimensions.
Convert between human-readable byte sizes and numeric bytes. Parse strings like '1GB' to bytes or format bytes to readable sizes like '500MB'.
Calculate the optimal toasting time for bread based on type, thickness, desired toastiness level, and whether the bread is fresh or frozen.
Plan meetings across multiple timezones. Select cities and view a comparison table showing corresponding times throughout the day.
Simple online calendar tool that displays a generic calendar for viewing dates and navigating between months.
A full-width calendar showing the moon phase and illumination percentage for every day, computed with suncalc.
A full-width calendar showing Estonia's public holidays for the current year, powered by date-holidays.
A full-width calendar showing public holidays from every country at once. Narrow it down to just the countries you care about with the multi select filter.
Read ICS calendar files online to inspect event details like start and end times, locations, organizers, and descriptions.
Generate QR codes for calendar events that can be scanned and imported into any calendar app. Create scannable codes with event details including title, location, description, and date/time.
Calculate wedding anniversary years and discover the traditional and modern gift suggestions for each milestone anniversary.
Calculate the price per gram for products. Compare costs across different weight units including grams, kilograms, ounces, and pounds.
Convert chemical equations from mhchem syntax to LaTeX format. Supports chemical formulas, reactions, arrows, and more for scientific documentation.
Calculate the price per gigabyte (GB) for storage devices, cloud storage, or hosting plans. Compare storage costs across different units.