The whole product

Everything Butler can do

Every tool a signed-in user can open, and the concrete jobs each one does. Grouped by the work rather than by the menu — the path under each name is where it lives in the app.

16 tools 4 groups EN · DE · FR
Access Butler

Writing & language

4 tools

The everyday surface. Everything here works on text you type, paste or attach.

/

Chat

A conversation with an assistant, with your own documents and the live web available to it.

  • Ask questions, get explanations, draft and rewrite text
  • Attach files — PDF, Word, Excel, images — and ask about them
  • Source the answer from one of your knowledge bases
  • Turn on web search for anything current, with sources listed under the answer
  • Edit a Word or Excel file inside the chat and get the edited file back
  • Pick an effort level; the higher tiers reason before answering
/translator

Translator

Side-by-side translation of text or a whole PDF.

  • Translates as you type, with automatic language detection
  • Drop in a PDF and translate the whole document
  • Click any translated word for synonym alternatives
  • Swap the languages to translate back and check the meaning survived
/proofreader

Proofreader

A review pass over a document that returns suggestions you accept or dismiss one at a time.

  • Paste text or drop a .txt, .md or .docx file
  • Get suggestions grouped as grammar, clarity, engagement and delivery
  • Accept a fix to apply it, or dismiss it — saved automatically
  • Keep documents in a library and re-review after editing
/document-studio

Butler Studio

A collaborative document editor, with the assistant right inside the interface.

  • Create a Word-style document or a LaTeX project, or import a .docx, .md, .tex, .pdf or .zip
  • Select text to rephrase, fix the grammar, ask for suggestions or ask a question, then replace or insert
  • Discuss the whole document, or keep the discussion to the selection
  • Compile the LaTeX and read the PDF beside the source
  • Version history, sharing and export to PDF, Word, Markdown or a source archive

Your documents & what Butler makes of them

5 tools

Butler’s centre of gravity: build a document library, have it read, searched and cited for you — then put an assistant of your own on top of it.

/deep-research

Deep Research

A question in, a structured and fully sourced report out — Butler plans the subtopics, searches, reads the sources and writes.

  • Search the web, your internal knowledge bases, or both
  • Add the scientific indexes — arXiv, OpenAlex, Semantic Scholar, Crossref, Europe PMC — automatically or on demand
  • Two sliders: how many sources to read, and how long the report should be
  • Follow the run: planning, searching, gap review, writing
  • Numbered citations, a bibliography and a clickable link to every source used
/scholar-review

Scholar Review

An AI review of a PDF — paper, thesis or report — where every remark is anchored to the exact spot in the document.

  • Drop in a PDF and start the review
  • Read the remarks as cards — one click jumps to the highlighted quote in the PDF
  • Add a reviewer rubric, optionally
  • Pick the model and the language; switch the grammar and fluency checks on or off
  • Keep past reviews as sessions and come back to them
/modeltraining/knowledge

Knowledge bases

Your own document libraries. Butler indexes them so answers cite your files instead of guessing.

  • Create a base, then drop or drag in PDFs, Word files and text
  • Files are chunked and indexed automatically
  • Use a base in any chat, or run a deep research over it
  • Generate titles and descriptions automatically for what you upload
  • Share a base with colleagues, or attach it to an assistant
Knowledge → Add content

Web Vacuum

Crawls a website and stores its pages locally, in one of your knowledge bases.

  • Give a URL, a crawl depth from one page to five levels, and a page ceiling
  • Stay on a single domain, or let it follow links outward
  • Preview every fetched page before committing it
  • Then build an assistant that knows exactly what is on that site
/modeltraining

Assistant Training

Build your own chat assistant: give it a role and connect it to your knowledge bases.

  • Build a custom assistant, give it a role, and attach knowledge bases to it
  • It answers from your documents only
  • Share it with your group or keep it private
  • It shows up in the chat model picker like any other assistant

Meetings & records

3 tools

Recording, speaker-labelled transcription and an editable report — from a file, your microphone, or the sound of an online call on this computer.

/Meeting_transcription

Meeting transcription

Turns speech into a written transcript, then into a report you can edit and export.

  • Drop in an audio or video file — MP3, WAV, MP4, M4A, FLAC, OGG, WEBM — or paste a link to a video or a podcast and let the server fetch the sound
  • Record the room from your microphone, with pause and resume
  • Record an online call — Zoom, Teams, Meet, Webex — by capturing your microphone and the computer’s sound on two channels: Butler never joins the meeting
  • Diarisation: who said what, with a speaker count you fix or let it detect
  • Optional live transcription, which also gives you live translation
  • Edit the transcript, produce a summary or a report, and export to PDF or DOCX
  • File meetings in folders and share them with your group
/Meeting_transcription/templates

Meeting Report Templates

Manage a set of templates that control what goes into a meeting report and how it reads.

  • Define what belongs in the report, in substance and in form
  • Fix the AI model and the report language, or leave both on automatic
  • Pick a template when you transcribe; the report is written as soon as the transcript is done
  • Manage your meeting templates and share them with your contributors
/Meeting_transcription/dictionaries

Speaker Dictionaries

Teach Butler the voices of your group so transcripts carry real names instead of “Speaker 1”.

  • Identify a person from several voice samples
  • Butler matches the speakers against the dictionary on every new transcript
  • Automate transcripts that name the people in the room

Making things

4 tools

Output you can put in a talk, a paper or a poster — slides, animations, drawings and PDFs.

/presentation

Presentation Creator

Turns a paper, a thesis or a report into a compiled LaTeX Beamer deck — figures placed, slides written, PDF built.

  • Drop in a PDF, Word, LaTeX, Markdown or text file, or simply write an instruction
  • Set the talk length, the audience, the language, the theme and the density
  • Butler describes your figures, plans the talk, writes every slide and places the figures from the paper
  • Export the PDF or the LaTeX source, which opens in Overleaf or Butler Studio
/animation

Animation Studio

Make your own animations: Butler writes a scene with Manim — the library behind the 3Blue1Brown videos — renders it and hands you the video.

  • Put animations into your presentations
  • Choose the length, the quality (draft or 1080p) and the format (MP4 or GIF)
  • Iterate with Butler until the animation is the one you want
/pdf-handling

PDF Handling

Six utilities for working with PDFs.

  • Edit — change the text of a PDF invisibly
  • Reorder and merge — move pages around or join several PDFs
  • Compress — shrink a file so it fits in an email
  • Protect and unlock — add or remove a password
  • PDF to images — every page as PNG or JPEG
  • OCR — pull the text out of a scanned document
/excalidraw/boards

Excalidraw Boards

A flipchart for sketches, diagrams and visual notes, saved as boards.

  • Draw with shapes, arrows, freehand strokes and text
  • Boards save themselves and show up as thumbnails in your list
  • Keep a board private or share it with your group

Things you do inside a chat

These are not entries in the dock — they are behaviours available in any conversation.

Attach a document

Drop a PDF, Word, Excel or image into the message box and ask about it. Several files at once is fine.

Cite your own library

Type # and pick a database. The answer quotes your files and shows which passage it came from.

Search the web

Toggle it on to read live pages, or leave it off — Butler turns it on by itself when a question clearly needs current information.

Edit a Word or Excel file

Ask for a change to an attached document and get the edited file back — the edits are made structurally, not regenerated.

Watch it think

Higher effort tiers reason before answering, and the reasoning trace is there to open if you want it.

See what answered

The generation-info hover on any message names the model that actually served it and how long it took.

All of it, on your own hardware

Every tool on this page runs on machines you control. Try the free ones anonymously, or open Butler if you already have an account.

Access Butler

Five of these run anonymously, with no account, on our free lane.