Find the free tier that fits your stack.

EmailQo Email Infrastructure Grader

EmailQo’s Email Infrastructure Grader is a web-based domain checker that evaluates email deliverability configuration in one click. It runs four checks against a domain: SPF, DKIM, DMARC, and MX records, then assigns a score out of 100 with each component worth 25 points.

Wikifactory

Wikifactory is a web platform for exploring open engineering projects and related documentation. The landing page describes access to more than 20,000 projects, CAD files, project documentation, articles, topics, and research resources, with links to view projects and browse community content.

Sheetson

Sheetson is a REST API layer for Google Sheets. It proxies Google Sheets data into object-based JSON responses so developers can read and query spreadsheet content without working directly with the Google Sheets API.

Tolgee

Tolgee is an open-source localization platform for translating application text through SDKs, a REST API, a CLI, and a web UI. It supports in-context editing, screenshot-based context extraction, mach...

Zipcodebase

Zipcodebase is a postal code API that returns location data for ZIP and postal codes worldwide. It supports code-to-location lookup, city and state searches, radius matching, and distance calculations through REST endpoints that return structured JSON.

Crosswork is project management software for teams. It provides multiple work views, including list, gallery, and kanban, along with filters, grouping, sorting, tags, subtasks, custom types, statuses, workflows, reports, analytics, and task/project cloning.

file.io

file.io is a file sharing service that accepts file uploads or direct text uploads and returns a shareable link. Uploaded files are stored encrypted, can be downloaded once, and are then deleted autom...

Clicky

Clicky is a web analytics platform that collects visitor, page view, and JavaScript event data in real time. It provides visitor logs, segmentation, heatmaps, uptime monitoring, outbound link and download tracking, custom data logging, and API access for site analytics.

Quidlo Timesheets

Quidlo Timesheets is an online time tracking and timesheet application for employees and teams. It provides a web app, mobile apps for iOS and Android, and desktop apps for Windows and macOS, with time entry through a start/stop timer or manual logging.