Open Source Factory

BROWSER TOOLS Caption Forge: Fix SRT Timing Without Uploading a File Open Source Factory · Sep 15, 2026 · 4 min read When every subtitle is half a second late, the immediate job is a timestamp shift. Caption Forge handles that edit in the browser. The example below also checks a less visible detail: how the export behaves when moving the first cue earlier would cross time zero. In this article Timing and text operations Moving a track by a fixed offset Exporting WebVTT Browser-local file handling Import, adjust and inspect the export Features outside the current tool A timing test, including the zero boundary Caption Forge imports an SRT or WebVTT file, edits text and timestamps, and exports the result. The tool is designed to process the selected subtitle and local video in the browser. That processing path should not be extended into a claim that the blog, dependencies or every hosting request is offline. LIVE TOOL CAPTION FORGE The workshop runs in its own full-size tab. Open ...

BROWSER TOOLS DARKROOM: Resize the Image Without Losing the Wrong Part Open Source Factory · Jul 31, 2026 · 4 min read A square crop and a smaller whole photo are different exports. DARKROOM puts those resize choices in the browser so the result can be inspected before download. The transparent-PNG check below shows a reproducible case, with format and dependency limits left visible. In this article Everyday image operations Import, adjust and inspect Inputs, exports and limits The interface Choose a resize mode with a concrete example Linked source documents A conversion you can reproduce Actual DARKROOM workspace, cropped from the English control view on October 26, 2026. Empty workspace; no files uploaded. Open DARKROOM in a full-size tab Image resize · format conversion · batch processing — all inside your browser Open the embedded tool preview 🔗 Open in new tab 📦 GitHub source The tool performs image conversion in the browser. That describes the processing path, r...

BROWSER TOOLS Naver Cafe Board Filter: Hide Boards from Your All Articles Feed Open Source Factory · Jul 31, 2026 · 3 min read A busy Naver Cafe feed can mix the boards you read with marketplace and attendance posts. This userscript filters selected boards in the All Articles view. It changes what your browser displays, while leaving the original posts available when the filter is disabled. In this article Features Installation Filtering behavior Technical details Questions and limitations Source code A reversible filter example Linked source documents Tampermonkey Free · Open Source Naver Cafe's All Articles view is convenient — except for one thing. A cafe with many boards can mix marketplace, attendance and event posts into the same feed. This script hides the selected boards from that view, making it easier to scan the remaining posts. The reversible example below explains what changes on the page. Naver doesn't ship a per-board filter. So I built one. F...

BROWSER TOOLS Jebonso: Convert TXT to EPUB in Your Browser Open Source Factory · Jul 30, 2026 · 5 min read A text file needs structure before it becomes a comfortable EPUB: chapter boundaries, metadata and a usable reading order. Jebonso handles those steps in the browser. The two-chapter export check below looks inside the resulting file rather than treating a successful download as proof of reader compatibility. In this article Conversion tasks Recognized chapter headings Conversion steps Supported inputs and outputs Interface design Worked example and conversion limits Linked source documents A two-chapter export, checked inside the file Single HTML file Free · No install · No server A plain-text manuscript needs chapter structure and book metadata to become a useful EPUB. Jebonso adds those steps in the browser. The two-chapter export check below shows what was verified and which reader-compatibility questions remain open. Installers, or a paywall Korean encoding (...