How the SaaS connectors work
Each SaaS connector asks for an API token you generate yourself inside your own account settings -- a personal access token, a read-only API key, or whatever the service calls it. You paste that token directly into the tool in your browser; it is never sent to our servers, never stored in a database, and never persists between sessions. Once you close or navigate away from the tab, the token is gone.
Most SaaS APIs restrict direct browser requests for security reasons, a browser policy called CORS (Cross-Origin Resource Sharing). Where that applies -- Trello, Airtable, ClickUp, HubSpot, and several others -- the request is forwarded through a stateless Cloudflare Worker. That Worker's only job is to relay your API call and return the response. It has no database, writes no logs of your data, and terminates the moment the response is complete. Cloudflare's infrastructure is the runtime environment; there is no backend service running continuously, no persistent process holding your query or your token.
Once the data arrives in your browser, a client-side converter turns it into a native .xlsx workbook. Excel workbooks are written in memory and then downloaded directly to your machine. At no point in this chain does a file containing your data touch a server we operate.
How the file converters work
The file converters -- CSV, JSON, XML, PDF, and published Google Sheets -- require no authentication at all. You supply a file from your local machine or a publicly accessible URL, and the conversion runs entirely inside your browser. The PDF parser uses a WebAssembly build of a PDF-reading library; the CSV, JSON, and XML parsers are pure JavaScript. Nothing leaves your device.
Because there is no server processing the file, there is no server-side size limit. The practical ceiling is your device's available memory, which for typical business exports -- a few thousand rows, a report PDF, a JSON API payload -- is rarely a constraint. The Google Sheets converter fetches the published spreadsheet directly from Google's own servers, so that path is also entirely client-side from our perspective; we never receive a copy of the sheet.
Why nothing is stored
This tool was designed around a deliberate constraint: the fastest way to protect your data is to not handle it in the first place. There is no account system, no upload queue, no database of past conversions, no log that records which tokens you have used or which boards you have exported. Each session is stateless. Each download is self-contained.
That design has a practical consequence for data governance. If your organization has policies that restrict which third-party services may receive sensitive or confidential information, this tool is built to be compatible with those policies. For the file converters, nothing leaves your machine. For the SaaS connectors, the only data in transit is the API response passing through the forwarding Worker on its way to your browser -- a path that is end-to-end encrypted, logged nowhere on our infrastructure, and complete the instant the download starts.
Because there is nothing stored, there is also nothing to breach, nothing to request under a data-subject access request, and no retention period to manage. The tool's security model is simple because the attack surface is small.
Who uses these tools
The SaaS connectors are used most often by project managers, operations staff, and analysts who export data from a tool on a recurring schedule: a weekly Trello board snapshot to share with a stakeholder who does not have a Trello account, a monthly Airtable base export for a finance team that works in Excel, a HubSpot pipeline dump before a sales review call. The .xlsx format works in Excel, Google Sheets, LibreOffice, and Numbers, so the recipient needs no particular software beyond a spreadsheet application they already have.
The file converters are useful in a different set of situations. A developer who wants to inspect a JSON API response in a grid rather than a text editor. A data team receiving an XML feed from a legacy system that needs to cross-reference it with existing spreadsheets. Someone who needs to extract a table from a PDF report and does not have OCR or PDF editing software installed. In each case, the converter turns a file format that is difficult to work with into one that most people already know how to use.
Free, with no signup required
Every connector and converter on this site is free to use. There is no paid tier, no trial limit, and no feature hidden behind a registration wall. Opening a tool page and downloading a workbook requires nothing from you except the API token or file the tool asks for. We do not run advertisements. The description on each tool page is a complete account of what it does -- there is no upsell step, no hidden processing, and no data shared with a third party beyond the forwarding Worker described above.