Local-first creation labs
Choose the workspace that matches the file
Text, forms, documents, visual scenes, audio, and video need different creation models. This is the one starting point for all six; your draft and generated media stay in this browser, with no account and no server-side storage.
Text & data
Write a blank file or open a starter with syntax highlighting, format-aware preview, conversions, and direct download.
- Best for
- JSON, CSV, Markdown, HTML, XML, YAML, code, manifests, and archive members
The editor opens as untitled.txt; use New to switch to any starter without losing the local-first workflow.
Forms
Build fields and validation from scratch, preview in a sandbox, and export standalone HTML, JSON, or a fillable PDF.
- Best for
- Autofill, scraper, validation, form-parser, and AcroForm fixtures
Structured fixtures keep their real sections and locked SAMPLE markings when opened in the Studio.
Documents
Compose headings, paragraphs, lists, key/value blocks, and tables with a live preview and multi-format export.
- Best for
- Letters, reports, invoices, spreadsheets, handouts, and print-ready drafts
Export HTML, Markdown, DOCX, XLSX when the document has a table, or print to PDF.
Visuals
Edit real scene nodes: copy, tables, colours, shapes, logos, product images, and backgrounds, then export locally.
- Best for
- Product cards, social graphics, signage, stream frames, schedules, and branded layouts
The blank canvas and every published template use the same validated scene editor, local draft store, and export path.
Audio
Synthesize a tone, frequency sweep, seeded noise signal, or silence and encode a bounded test fixture in a dedicated worker.
- Best for
- WAV, AIFF, AU, MP3, AAC, M4A, M4R, FLAC, AC-3, Ogg, and Opus fixtures
Versioned recipes and source/output SHA-256 hashes distinguish byte-identical paths from content-equivalent browser codecs.
Video
Render a short geometric test pattern and encode it through the codecs this browser reports for the selected container.
- Best for
- MP4, M4V, MOV, MKV, WebM, CMAF, MPEG-TS, and HLS interoperability fixtures
No camera or microphone is requested. WebCodecs output is content-reproducible, but encoder bytes can differ by browser and hardware.
Not sure which model you need?
Use the text editor when the file itself is readable source. Use Form Studio when fields and validation are the contract. Use Document Studio when ordered content blocks and page export matter. Use Visual Template Studio when the result is a positioned canvas with editable layers. Use the media labs when a bounded synthetic signal and reproducibility evidence are the test contract.
These workspaces share one entry point, but they do not pretend that a CSV cell, a PDF form widget, and a canvas layer are interchangeable. That separation keeps exports predictable.