Guides
File format guides that actually answer the question
Short, practical articles about the formats and tools people search for every day — written by the team that runs the conversion pipeline.
PNG to ICO: A Favicon That Looks Sharp at 16px
A single 256px icon scaled down by the browser looks muddy. Build a multi-size ICO with the right sizes and transparency instead.
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PDF Metadata: What It Reveals and How to Remove
Every PDF carries hidden fields: author name, software, creation time and sometimes GPS. Here is how to inspect them and strip them before sharing.
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Add Page Numbers to a PDF Without Breaking Links
Stamping page numbers can cover text, shift content or invalidate signatures. Here is how to place numbers so nothing else changes.
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VTT vs SRT: Convert Subtitles Correctly
Both formats look similar but differ in timing syntax, headers and cue settings. Here is what changes when you convert VTT to SRT or back.
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SQL INSERT to JSON: Dump to Test Fixtures
Turn INSERT statements from a database dump into a JSON array for fixtures, mocks or seed scripts — without a database server.
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XML to JSON: Attributes and Repeated Nodes
XML has attributes, mixed content and repeated elements that JSON has no direct equivalent for. Here is exactly how each one is mapped.
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CSV to JSON: Spreadsheet to API Payload
Turn a spreadsheet export into a JSON array of objects for seed data, API tests or a quick import — and avoid the quoting and type traps that break it.
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YAML to JSON: Converting K8s and CI Configs
YAML is easier to write, JSON is easier to consume. Convert YAML to JSON without losing structure, and know which YAML features JSON cannot represent.
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Extract Images from a PDF at Full Resolution
Screenshots of a PDF look blurry. Extracting the embedded images gives you the original pixels — here is how to pull every image out in one pass.
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Convert MP4 to MP3 at 320 kbps (No Quality Loss)
Extracting audio from a video is simple, but the bitrate you pick decides whether the result sounds identical. Here is how to get a clean 320 kbps MP3.
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Compress a PDF Under 1 MB for Email
Most inboxes reject attachments over 20 MB and slow down on anything above 5 MB. Here is how to compress a PDF under 1 MB without making text unreadable.
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HEIC to JPG on Windows Without Losing Quality
Windows cannot open iPhone HEIC photos out of the box. Here is how to convert HEIC to JPG or PNG without losing quality, plus how to batch it.
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