Toolvyn v1.6.37
Download
On-device · Windows 10 & 11

The whole toolbox.
None of the uploads. Free offline PDF, image, video and audio tools for Windows.

Toolvyn is one Windows workspace for documents, images, video, audio, YouTube and local AI. Forty-seven workflows, every one of them running on your own CPU and GPU — no account, no queue, no file leaving the machine.

Download for Windows Browse all 47 workflows
Toolvyn workspace showing pinned workflows, recent local activity and media categories
Processed on this PC
47 local workflows
Workflows47
Required uploads0
Interface languages20
AccountNot needed

01 / Flow

Ask for the result. Toolvyn opens the right tool.

Three moves cover almost everything: describe what you want, drop the files, take the output from your own folder.

Step 01

Search by task, not by menu

Press Ctrl + K anywhere and type what you need — “compress a PDF”, “remove background”, “4K video”. Search accepts both your interface language and English tool terms.

  • 47 workflows indexed by task, format and synonym
  • Matching tools open with the right controls already visible
  • Recent work stays pinned on the home workspace
Toolvyn command palette listing matching video workflows
Step 02

Drop a mixed batch and let it route

Smart Convert & Compress accepts PDFs, images, video and audio in one list, detects each file and sends it to the correct local engine with a Web, Balanced or Maximum Quality preset.

  • One queue for mixed file types, no manual sorting
  • EXIF, tags and document properties removed on request
  • Source files preserved by default
Smart Convert and Compress with a mixed batch of files queued for export
Step 03

Everything lands in your own folder

Output goes where you point it. History, presets and job records stay on the machine, and the theme, language and engine cache are yours to control from Settings.

  • Local history — nothing synced, nothing reported
  • Media engines cached once and reused offline
  • Portable builds keep the cache beside the application
Toolvyn settings with theme, language, output folder and media engine options

02 / Coverage

Six areas. Forty-seven workflows. One install.

The tools people normally keep six browser tabs open for — grouped by what you are actually working on.

Permanent PDF redaction workspace with a loaded document

PDF work that finishes on your desk

Merge, split, rotate, extract, compress, repair and protect. Redaction flattens the covered regions so removed content is genuinely gone, and Windows OCR turns scans into searchable PDFs or editable Word documents.

Merge PDFsSplit PDFCompress PDFRotate pagesExtract pagesRemove pagesPDF to imagesImages to PDF+10

03 / Privacy

Local-first is the architecture, not the marketing.

There is no upload step to opt out of, because there is no upload step.

0

Required file uploads

Conversion, recognition and AI enhancement all run against your own CPU and GPU. The only network traffic is your explicit choice: a YouTube link you paste, a one-time engine download, or the update check.

No account

No sign-up, no licence server, no telemetry profile to opt out of.

Originals are preserved

Every workflow writes to an output folder by default. Destructive edits are opt-in and clearly labelled — redaction, which is meant to be permanent, flattens the result on purpose.

History stays on the machine

Recent jobs, presets and output paths live in your local profile. Nothing is synced, and clearing them is a local action.

20

Interface languages

Embedded offline catalogs, switched instantly without a restart.

Verified, atomic engine installs

A media feature downloads only the engine it needs on first use, shows real progress, checks a pinned SHA-256 digest and installs atomically under the local application data folder. Portable builds keep the same cache beside the application.

04 / Engines

Proven engines, kept out of the base installer.

The download stays compact. Each engine arrives only when a workflow actually needs it.

FFmpeg Video and audio conversion, trimming, merging, subtitles, filters, frame interpolation, GIFs and metadata removal. ≈ 105 MB download
yt-dlp + Deno YouTube metadata and media retrieval for focused tools and batch workspaces. ≈ 58 MB download
whisper.cpp Local speech recognition. Tiny, Base, Small and Large v3 Turbo quantized models fetched individually. 31 MB – 548 MB per model
Real-ESRGAN ncnn Vulkan image and video-frame enhancement to 2K or 4K on a capable graphics adapter. ≈ 43 MB download
ONNX Runtime + U2NetP CPU inference for the lightweight background model, downloaded once and reused. ≈ 4.4 MB model
Windows OCR Built into the operating system. Text recognition for scans, images and PDFs with nothing extra to fetch. Ships with Windows

05 / Languages

Twenty languages, embedded and offline.

The initial language follows Windows and changes instantly under Settings. Arabic and Urdu use a fully mirrored right-to-left layout.

EnglishEspañolPortuguês简体中文हिन्दीDeutschFrançais日本語РусскийBahasa Indonesiaالعربية한국어ItalianoTürkçeTiếng ViệtPolski繁體中文ไทยবাংলাاردو

06 / Download

Install it once. Work offline after that.

A single Windows setup. No separately installed .NET runtime, no account, no subscription.

Download 1.6.37 for Windows89 MBDownload the portable ZIP 90 MB See what you get

Free, no account needed · 89 MB

Not code-signed yet, so Windows SmartScreen shows a warning. Choose More info, then Run anyway - or verify the SHA-256 first.

SHA-256 0346a1bc5939bf62f0537e0e766f6c3ccd7a3d9a5a09060704df5b31e94a3235

Version
1.6.37
Package
Toolvyn-Setup-1.6.37-x64.zip
Size
89 MB
Requires
Windows 10 2004 (19041) or newer
Architecture
64-bit x86
SHA-256
0346a1bc5939bf62f0537e0e766f6c3ccd7a3d9a5a09060704df5b31e94a3235

07 / Questions

The things people ask first.

Are my files really never uploaded?

Yes. Document, image, audio and video processing runs against local engines on your own machine. Network access happens in three explicit cases: a YouTube link you paste, the one-time download of a media engine or AI model, and the update check. None of them send your files anywhere.

Why is the installer small if it does this much?

The base installer ships the application only. FFmpeg, the YouTube runtime, Whisper models and the Vulkan upscaler are fetched the first time a workflow needs them, verified against a pinned SHA-256 digest, and installed atomically. If you never touch video, you never download FFmpeg.

Do I need a powerful GPU?

No. CPU conversion works on every supported PC. AI upscaling needs a Vulkan-capable graphics adapter, and hardware video encoding is tested at runtime — Auto falls back to CPU when a listed GPU encoder is not operational.

Does it modify my original files?

Not by default. Workflows write to an output folder and leave sources untouched. The exception is deliberate: permanent PDF redaction flattens the result so covered content cannot be recovered.

Is there a portable build?

Yes. The portable ZIP is application-only and keeps its engine cache beside the executable, so it does not write to the machine profile.

How do I compress a PDF without uploading it?

Drop the file into Compress PDF and choose Lossless, Balanced or Strong. A local engine on your own PC does the work, the original stays untouched, and the document is never sent to a server — so it also works with no internet connection.

Can I remove an image background offline on Windows?

Yes. Background Studio removes, replaces or blurs backgrounds with a 4.4 MB U2NetP model that downloads once and then runs on your CPU through ONNX Runtime. After that one download it needs no connection and no cloud credits.

How do I transcribe audio to text locally, without an API key?

Toolvyn runs whisper.cpp on your machine. Drop in audio or video and export TXT, SRT, VTT or JSON. You pick the model — Tiny at 31 MB up to Large v3 Turbo at 548 MB — and because nothing goes to a transcription service there is no API key and no per-minute cost.

Can I convert YouTube videos to MP3 or MP4?

Yes. Paste a link and export MP4 video or MP3, M4A, FLAC, WAV or Opus audio. Retrieval runs over your own connection with yt-dlp and the conversion happens locally with FFmpeg. Please respect the rights of the material you download.

How do updates work?

The desktop app contains a read-only updater. When enabled for a production build it anonymously reads an HTTPS release feed, verifies an ECDSA-signed manifest, streams the installer through size and SHA-256 checks, verifies the Windows Authenticode signature, and only then starts the installer.