Free online file tools
Free online file converter picks for the jobs that come up every week. Convertio handles documents, images, audio and video, while TinyWow covers PDF merging and compression. Squoosh shrinks images in the browser, and Docalysis lets you ask questions about a PDF. 8 picks from the Bez Tytułu newsletter, in reading order.
The picks
Convertio: Online File Converter
Tool · convertio.co · Issue #138
Convertio is an online file converter that handles documents, images, audio, video, spreadsheets, ebooks, archives, presentations and fonts across more than 300 formats. Conversion runs in the cloud, and uploaded files are deleted right away and converted files after 24 hours. The maximum file size is 1 GB, and the site also offers a conversion API and OCR.
TinyWow: Free Online PDF, Image, Video and Text Tools
Tool · tinywow.com · Issue #30
TinyWow is a website with online tools for PDFs, images, video, text, and files, including PDF merging and compression, background removal, video to GIF conversion, CSV to JSON, and a YouTube transcript generator. The page presents the tools as free with no sign-up, and promotes a paid Premium tier that removes ads and CAPTCHAs. It says uploaded files are deleted after one hour.
ChatDB: Free Browser-Based Data Tools
Tool · chatdb.ai · Issue #127
ChatDB is a collection of free, browser-based tools for working with data files, with 53 tools in total. It can convert, view and edit files such as CSV, Parquet, JSON, GeoJSON, SQLite and Excel, and includes AI tools for querying Parquet and CSV files in natural language. The site says its tools run in the browser, with no uploads and no accounts.
Squoosh: Browser-Based Image Compressor
Tool · squoosh.app · Issue #175
Squoosh is a browser-based image optimizer that compresses images while keeping quality high. Users open an image, compare results across codecs and save the smaller file, with advanced settings for finer control. Processing happens locally, so images never leave the device. The tool is linked to a public GitHub repository under GoogleChromeLabs.
PineTools: Free Online Tools
Tool · pinetools.com · Issue #207
PineTools is a collection of free online utilities sorted into ten categories, including mathematics, colors, text and lists, images, files, programming, and videos. Examples include a percentage calculator, a color inverter, a base64 encoder, JSON and HTML formatters, a password generator, and a screen recorder. The site is offered in English and Spanish.
Docalysis
Tool · docalysis.com · Issue #142
Docalysis is an AI tool for chatting with PDF documents, answering questions about a file within seconds. Its products are Chat, Batch, Embed and an API. The company claims it saves 95% of the time spent reading documents, and says files can be deleted at any time.
AirClap: Local Wi-Fi File Transfer App
Tool · airclap.app · Issue #161
AirClap moves files between Mac, iPhone, Windows and Android over local Wi-Fi, without cables, internet or cloud storage. Devices find each other automatically on the same network, and you drag files onto the app to send them. Basic transfers are free and need no account, while a Pro tier adds unlimited transfers and folder sharing. The vendor claims transfers are faster than AirDrop in its own tests.
DownThemAll: Batch Download Extension for Firefox
Tool · downthemall.net · Issue #192
DownThemAll is a free Firefox extension that downloads all the links or images on a web page at once, filtered by customizable criteria. It supports pausing and resuming, and includes an accelerator that the page says can speed up downloads by up to 400%. The page lists version 3.0.7 as the latest stable release and notes that a WebExtension rewrite was delayed.