One place for useful online tools.
Process images, calculate, convert, generate, format and check — with a clean interface that works on mobile and desktop.
Recently used
Tool categories
Text Tools
Count, clean, transform and analyze text instantly in your browser.
29 toolsDeveloper Tools
Format data, encode values, generate hashes and inspect developer formats locally.
43 toolsGenerators
Generate secure, random and reusable content for everyday tasks.
18 toolsCalculators
Fast everyday, business and finance calculations with clear results.
44 toolsConverters
Convert measurements, values and common numeric formats without uploads.
18 toolsDesign Tools
Color, CSS and visual helpers for designers and frontend developers.
13 toolsSEO & Webmaster
Create search, social and webmaster markup for real websites.
17 toolsImage Tools
Resize, compress, convert and edit images locally in your browser.
46 toolsHealth & Fitness
Private browser-side wellness calculators for everyday fitness planning and personal estimates.
15 toolsEducation Tools
Calculate grades, study time, reading speed and common academic values without creating an account.
12 toolsBusiness Tools
Practical pricing, growth, profitability and SaaS metrics calculators for founders and small businesses.
20 toolsDate & Time Tools
Work with dates, durations, business days, week numbers and calendar calculations instantly.
15 toolsDocument Tools
Create practical documents and convert images into downloadable PDF files directly in your browser.
12 toolsFile & Data Tools
Inspect, hash, encode and transform local files and tabular data without uploading them.
18 toolsEveryday Tools
Useful household, travel, energy, construction and device calculators for everyday decisions.
15 toolsPrivacy & Security
Local browser utilities for password checks, checksum validation, browser details and security-policy generation.
15 toolsMath & Science
Solve common math, geometry, statistics and science calculations directly in your browser.
30 toolsConstruction & Home
Estimate materials, dimensions, room needs and common home-project quantities with practical calculators.
25 toolsMarketing Metrics
Calculate advertising, email, social, funnel and customer metrics for campaigns and growth analysis.
25 toolsMedia & Subtitle Tools
Calculate video and audio properties and transform subtitle text locally without uploading media.
20 toolsE-commerce & Pricing
Calculate store pricing, marketplace fees, inventory performance and unit economics from your own numbers.
30 toolsCreator & Social Media
Measure engagement, watch time, sponsorship economics and content performance across creator platforms.
30 toolsCrypto & Trading
Model trading, token, staking and portfolio scenarios from values you provide; no live price feed required.
30 toolsTravel & Logistics
Estimate trip, freight, cargo, vehicle, warehouse and delivery quantities with practical planning calculators.
30 toolsProductivity & Planning
Plan work, meetings, projects, goals, habits and team capacity with straightforward browser-side calculators.
30 toolsHTML & Website Analysis
Inspect pasted HTML for SEO, metadata, links, images and page-structure issues locally in your browser.
25 toolsAudio Tools
Analyze and transform browser-supported audio locally, including trimming, normalization, channel work and waveform tools.
25 toolsVideo Tools
Inspect local video files and extract useful frames, thumbnails and visual assets directly in your browser.
25 toolsZIP & Archive Tools
Create, inspect and reorganize ZIP archives locally without uploading your files to MediaZuno.
25 toolsWeb Performance
Practical browser and website performance calculators for page weight, bandwidth, caching, Core Web Vitals budgets and delivery planning.
25 toolsNetworking & Infrastructure
Network, hosting and infrastructure calculators for subnets, bandwidth, packets, capacity, storage, latency and operational planning.
25 toolsSaaS & Subscription Metrics
Recurring-revenue calculators for MRR, ARR, churn, retention, CAC, LTV, pricing, support and subscription growth.
25 toolsPrint & Publishing
Print-production calculators for DPI, pixels, paper, bleed, booklet pages, spine width, print runs and publishing costs.
25 toolsLive DNS & Domain
Live public DNS lookups and domain record diagnostics with safe server-side querying.
25 toolsEmail DNS & Authentication
Live SPF, DMARC, DKIM, MTA-STS, TLS-RPT and BIMI record checks for email-domain setup.
25 toolsLive Website Diagnostics
Live HTTP response, redirect, header, timing and page metadata checks against public websites.
25 toolsLive On-Page SEO
Live public-page analysis for headings, links, images, structured data, social metadata and technical SEO signals.
25 toolsUseful right now
Word Counter
Count words, characters, sentences and paragraphs as you type.
Open tool →Developer ToolsJSON Formatter
Pretty-print valid JSON with readable indentation.
Open tool →Developer ToolsBase64 Decoder
Decode Base64 into readable UTF-8 text locally.
Open tool →GeneratorsPassword Generator
Generate strong cryptographically random passwords with selectable character sets.
Open tool →GeneratorsRandom Picker
Pick one or more random items from a list without bias.
Open tool →CalculatorsPercentage Calculator
Calculate a percentage of any number.
Open tool →ConvertersTemperature Converter
Convert Celsius, Fahrenheit and Kelvin accurately.
Open tool →Design ToolsHEX to RGB
Convert HEX colors into RGB values.
Open tool →SEO & WebmasterMeta Tag Generator
Generate a title, description and robots meta block for a webpage.
Open tool →Image ToolsImage Resizer
Resize an image to exact pixel dimensions locally in your browser.
Open tool →Image ToolsImage Compressor
Compress JPG, PNG or WebP images locally with adjustable quality.
Open tool →Image ToolsCompress Image to 100KB
Compress and resize an image toward a 100 KB target.
Open tool →Tools that actually do the job
MediaZuno focuses on utilities that produce a useful result from your own input. The current browser-first tools process text, calculations, code and images locally wherever possible, which keeps them fast and private.