1st.toolsText Studio

WRITE CLEAR. STAY LOCAL.

Write freely.
Review carefully.

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No login · No document upload · In this browser

Guide

My document workspace

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0 / 1,000 characters

Paste text to see character counts with and without whitespace, words, sentences, paragraphs, UTF-8 bytes and estimated 200-character manuscript pages. Change the target and whitespace basis. Perceived-character counts may differ from submission rules.

Text cleanup · Find/replace

This heuristic prioritizes blank lines, headings, lists and sentence endings. Check the preview for tables, poetry and words split across lines.

Search is literal, without regular expressions. The original stays unchanged until you apply.

There is no automatic saving.

The original and revision are kept in browser storage. Delete them after using a shared device. Downloads, clipboard contents and backups require separate management.

Compare original and revision

Separate changes are shown by sentence and word. Minimum edits and semantic or factual equivalence are not guaranteed.

Select Compare changes to show differences.

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Original and revised sentence lists

Original sentences

    Revised sentences

      Applying replaces the entire document. Undo prepares the full original from before the last application; compare and apply it.

      Make the next step simple.

      When your artwork description is ready, copy the original before opening the next tool. Open Caption Studio ↗
      This is a separate service. Files and text are not transferred automatically.

      Processing · Browser support · Privacy · Licenses

      Document bodies are not uploaded. Ordinary HTTP requests are made to access the site, and the hosting provider may process connection information. No analytics scripts are included. Browser extensions, the operating system, clipboard and downloaded files are outside this tool’s control.

      Up to 100,000 UTF-16 units are checked, distinct from the displayed character count. Excess text is not truncated; review stops. Unsaved text is lost on reload or closing the tab. A current Chrome, Edge, Safari or Firefox with Intl.Segmenter and Web Worker support is required.

      The document engine is custom JavaScript and uses no external spelling, AI or paid document API. See the build-tool licenses at the link below. Open-source licenses