Popular categories
Jump into the tools people use most—pick a category and go straight to a converter or utility.
Audio
MP3, WAV, FLAC, AAC, and extraction from video.
Documents
PDF, Word, Excel, PowerPoint, and HTML.
Spreadsheets & data
CSV, XLSX, and structured formats.
Compress & utilities
Smaller files plus everyday helpers.
Why FileConversion.co
One place for everyday file work
Upload a file, pick a format or tool, and download results. Built for quick tasks and repeat workflows.
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Format conversion
Hundreds of pairs—images, video, audio, docs, and data.
Compression tools
Smaller PDFs, photos, video, and audio with clear presets.
Quick utilities
Crop, resize, OCR, encoders, and dev helpers in one hub.
Clear lifecycle
Uploads, processing, downloads, and automated deletion on a fixed schedule.
How it works
Four short steps from upload to download—same flow across converters.
- 1UploadDrop a file or choose from your device.
- 2Select outputPick the target format or compression preset.
- 3ProcessWe run the job and prepare a download.
- 4DownloadGrab your file; links expire after retention.
Quick answers
- Do I need an account?
- No—guest conversion works in the browser. Accounts unlock higher limits and credits.
- Are my files stored forever?
- No. Downloads are time-limited and files are removed automatically after the retention window.
- What formats are supported?
- Hundreds of pairs across media, documents, and data—see all tools.
- Where can I get help?
- Visit the Help Center or contact us with questions.
File conversion guide
Understanding file conversion
Picking a format is really about the next step: will the file open where you need it, stay small enough to share, or keep the layout you intended? Conversion moves your work into a different set of trade-offs—size, quality, and compatibility—so the output matches the job.
The sections below summarize how to think about formats, when to convert, and what to expect. Everything here is plain HTML in the page—no extra steps required to read it.
Choose the right format
Match output to the audience and channel: web delivery favors smaller media; archives and editing favor fidelity. No single format wins every time.
- Photos on the web: often JPG or WebP; transparency → PNG or WebP.
- Finished documents for review: PDF keeps layout; DOCX when editing continues.
- Tables and APIs: CSV for simplicity; JSON or XML when structure matters.
- If unsure, pick the format your recipient’s tool lists first—it saves a round trip.
Keep files compatible
Phones, browsers, and desktop apps support different codecs and containers. Converting is how you bridge a camera, an editor, and someone who only has a PDF reader.
- Video: MP4 is widely playable; MOV/AVI often appear in editing pipelines.
- Images: HEIC from phones may need conversion for older desktop tools.
- Audio: MP3 and AAC are common for playback; WAV or FLAC when quality is priority.
- When sharing outward, prefer boring, common formats over exotic ones.
Understand quality limits
Lossy compression throws away information you cannot restore by exporting again. Documents can reflow when moving between office formats, PDF, or HTML.
- Upsampling to a “bigger” format does not bring back lost detail.
- Another pass of heavy compression often looks the same or worse.
- Layouts with custom fonts and tables are the most likely to shift.
- Start from the cleanest source you have for the least surprises.
Format notes
Image formats
JPG suits photos and continuous tone with lossy compression. PNG keeps transparency and sharp edges. WebP can shrink files for the web; HEIC is common on phones and may need conversion for older software. SVG is ideal for logos and icons that must scale cleanly.
Video and audio formats
MP4 is the usual choice for sharing and streaming video. AVI and MOV show up in editing archives; WebM targets web delivery where supported. For audio, MP3 and AAC are widely played; WAV is heavier but simple for editing; FLAC stores lossless audio when space allows.
Document formats
PDF preserves visual layout across devices—good for forms and handoffs. DOCX is the editable standard in many offices. HTML carries structure for the web; converting to or from it helps reuse text and publish without locking design.
Data formats
CSV is the simplest interchange for tables. JSON fits apps and APIs with nested data. XML remains common in enterprise feeds and strict schemas. The right choice depends on validators, consumers, and whether humans need to read the file raw.
Common use cases
- Shrink images or switch formats for faster pages and smaller attachments.
- Export to PDF when reviewers should see layout, not edit source.
- Pull audio from video for podcasts, transcripts, or lightweight clips.
- Convert when the receiving app shows “unsupported format.”
Practical tips
- JPG for photos where a little loss is OK; PNG when you need transparency.
- WebP when your stack and visitors support it; keep a fallback path if not.
- PDF for fixed layout; CSV/JSON/XML for structured data by consumption pattern.
- Pick one source-of-truth file before converting repeatedly—quality stacks.
Privacy and file handling
Uploads are processed to produce your converted file. Downloads are temporary; files are removed automatically after a retention window—for example, eight hours—so save what you need promptly. Basic conversion does not require an account.
Conversion quality and limitations
Heavy compression removes detail permanently. Documents may change spacing or fonts between formats. Starting from a high-quality, minimally compressed source usually gives the steadiest results.