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File Converter is a tool that converts and compresses one or several files using the context menu in Windows Explorer. It is open source under GPL v3, free, and without ads or data collection. It supports many audio, video, image and document input and output formats, and conversion presets can be added or edited in context menus. Office document conversion requires Microsoft Office installed and activated.
A collection of free browser-based tools for hashing, encoding, encryption, formatting, compression, file processing, QR codes, UUIDs, JSON and XML. It groups utilities for cryptography, compression, encoding and format conversion in one page.
NONCODE is an integrated knowledge database dedicated to non-coding RNAs, excluding tRNAs and rRNAs, with a focus on lncRNAs. The current version is v6.0. It offers browsing by species and type, searching entries, statistics, BLAST similarity searches, disease-related information, genome locations, ID conversion, downloads, predicted functions and cross-species conservation.
cheminfo.org is a website offering a collection of utilities for chemistry and related fields. Tools include NMR spectrum analysis, mass spectrometry, JSON conversion, and image processing. The site also provides exercises and simulators for spectral interpretation.
CyberChef is a web application for encryption, encoding, compression and data analysis. It provides hundreds of operations that can be combined into recipes, and input files can be dragged onto the input box, with files up to around 2GB supported depending on the browser. It is released under the Apache Licence, Version 2.0.
A collection of browser-based utilities for formatting, converting and generating data locally in the browser. It includes tools for JSON formatting, password generation, word counting, Base64 encoding, color conversion and regex testing, organized into packs such as JSON & Data and PDF Toolkit. The site states tools run locally without leaving the tab.
AnyTextEditor is a free online text editor that provides extensive functionality for editing and manipulating text. Users can work with various fonts, encodings, and code formats. The tool includes utilities such as find and replace, case conversion, URL decoding and encoding, HTML and CSS editing, word and character counting, grammar checking, text comparison, and text-to-speech. It also offers generators for passwords, QR codes, barcodes, random data, and more, as well as converters for documents like PDF, Word, and Excel.
Clipboard CopyPaster is a free Android clipboard manager by EVVAsoft. It saves copied texts, links and images, and allows copying saved data back to the clipboard. Features include editing, sharing, notes, search, QR codes, themes, a password, biometrics, backups, PDF conversion and a floating window. On Android 10 and higher, the app must be opened to save clipboard contents.
A browser-based utility that converts infix expressions to postfix or prefix notation and shows the conversion steps. It also evaluates postfix and prefix expressions. The page states that spaces must not be used in the expression. Algorithm steps for the postfix and prefix conversions are presented, and the page was updated on 26 February 2023.
Engineering Archive is a preprint server showing a latest preprints feed of engineering research papers, each with authors, DOI links, and PDF or DOCX downloads. The excerpt lists topics including beam finite element analysis, satellite beam tracking, ground-penetrating radar modeling, robotic control, seawater electrolysis, wave energy conversion, and pose estimation.
Use online text and data conversion tools.
Pirsch Analytics is a privacy-friendly, open-source web analytics tool presented as an alternative to Google Analytics. It is cookie-free, integrates via a tracking script, plugins, or API, and omits consent banners. The tool offers dashboards with filters, session analysis, custom event and conversion goal tracking, and imports data from Plausible, Fathom, and Google Analytics.
TableConvert is a free online table converter and data generator tool. It supports conversion between more than 30 formats, including Excel, CSV, JSON, Markdown, LaTeX and SQL. The site also offers an online table editor, a table generator, web page table extraction and a Chrome extension.
Simple browser tool for encoding or decoding URLs, query strings, and escaped characters.
Valuta EX is a currency converter providing exchange rates for over 160 world currencies, plus cryptocurrencies. Rates are mid-market rates drawn from live market data and refreshed hourly. Conversion pages compare typical dealer margins of 0–5% charged by banks, ATMs, credit cards and exchange kiosks. It is developed by inkOfPixel Srl, a software company based in Milan, Italy.
WebOasis is an all-in-one web portal and startpage designed for internet and technology enthusiasts. It aggregates custom links, news feeds, technical resources, social media platforms, cryptocurrency and stock market data, weather information, conversion tools, short URL services, text editors, magnet links, streaming content, arcade games, image upload tools, radio, forums, chat, live content, to-do lists, text tools, FAQs, QR code generators, and link hiding features. It supports customizable settings including color themes, animations, backgrounds, configuration import and export, and a random link function, and is at version 1.26.2.
Computational answer engine for math, science, data, conversions, facts, and structured calculations.
