Many formats
Images, audio, video, documents and spreadsheets — dozens of formats in one place.
Convert files between formats
Powered by professional Linux conversion tools — images, audio, video, documents & spreadsheets
Drop files here or click to select
Supported Formats
Images
Audio
Video
Documents
Spreadsheets
Why convert files with TechTools?
Pro-grade engine
Powered by ImageMagick, ffmpeg and pandoc for accurate, high-quality conversions.
Private uploads
Your uploaded file is removed right after conversion; results are reachable only by your private link.
Free & instant
No signup and no software to install — upload, convert and download in seconds.
Frequently asked questions
How do I convert a file online?
Drop your file onto the upload area (or click to browse), choose the target format, and click Convert File. When it's done, download the converted file.
Is the file converter free?
Yes, it's completely free with no signup and no software to install.
Which formats can I convert?
Images (JPG, PNG, GIF, BMP, TIFF, WebP), audio (MP3, WAV, FLAC, AAC, OGG, WMA, OPUS), video (MP4, AVI, MOV, MKV, WebM, WMV), documents (PDF, DOCX, TXT, HTML, Markdown, RTF, ODT) and spreadsheets (CSV, XLSX).
Is there a file size limit?
You can convert files up to 16 MB each.
What happens to my uploaded files?
Your file is converted on our server using professional tools (ImageMagick, ffmpeg, pandoc). The uploaded copy is removed right after conversion, and the converted result is only reachable through your own private download link — never shared or indexed.
Do I need to install any software?
No. Everything runs from your browser — you upload a file, the conversion happens on our server, and you download the result.