A live, editable I monogram you can download as SVG or PNG right now — plus what the shape of a I actually demands from a logo designer.
A single vertical stroke, sometimes with top and bottom serifs or crossbars, and nothing else.
Rendered in Arvo at weight 700. Drag the letter to reposition it, then download — or open it in the full editor to change everything.
The I is the hardest letter in the alphabet to make into a logo, and it is not close. A single vertical stroke in a square container is a rectangle: it has almost no silhouette, it reads as a divider or a cursor rather than as a letter, and at small sizes it is genuinely indistinguishable from a lowercase l or the digit 1. Sans-serif faces make this worse by removing the serifs, which are the only things that identify the stroke as an I.
Use a serif or slab face — Rokkitt, Arvo and Josefin Slab all give the I strong horizontal terminals that turn a bare stroke into a recognisable letterform. Failing that, use a face with crossbars (Cinzel, Marcellus). The other legitimate approach is to stop treating the I as the mark: use it as a vertical element inside a two-letter lockup, or lean entirely on colour and container shape and accept that the letter itself is doing very little work.
At 16px a sans-serif I is a two-pixel vertical line. There is no fixing this with weight or size. If the favicon matters, use a serif I or pick a different mark entirely.
The I is at its best as the second letter: AI, BI, MI and TI all read cleanly because the neighbour supplies the shape and the I supplies a clean terminating vertical. Avoid II and IH.
A bare vertical stroke is not a letter. Arvo's heavy unbracketed slabs give the I unmistakable horizontal terminals, which is the only thing that makes it readable as an I. See what Arvo looks like as an icon , or swap it for any of the 900+ Google Fonts in the editor.
Geometric centring and optical centring are not the same thing. Nudge the I until it looks centred, not until the numbers say it is.
Corner radius changes the mood more than the font does. A 0% square reads as technical, 20% as an app icon, 50% as a personal avatar.
The editor's Web Icons export produces ten PNG sizes, an SVG, a favicon.ico, a manifest and the HTML to install it all.
Open the free editor, change the font, colours, corner radius and spacing, then export SVG, PNG, ICO or a complete favicon package. No account, no watermark.
Open the letter I logo editorEach letter has its own shape problems. These are the nearest neighbours of the I.